From a pack, two cards are drawn, the probability that either both are black of both are queen isAns

From a pack of cards. 2 cards are chosen at random. Find the probability of the event of having one card as 10 which is not hearts and another a hearts cards

if the equatn A+B+C+D+E=FG is two digit numbers,whose value is 10f+G and the letter A,B,C,D,F and G each represent diffrentgigits. if FG is as large as posible,what is the value of G?ans 1

A truck traveling at 70 miles/hr consumes 30% more fuel than another that is traveling at 50 miles/hr.If truck traveling at 50 miles/hr has fuel efficiency of 19.5 miles/litre.Then how many miles can the truck traveling at 70 miles/hr travel on 10 litre of fuel136140150130120

At 50 mph, fuel consumed per litre = 1/19.5 ltrsAt 70 mph, fuel consumed per litre = 1.3/19.5= 1/15 ltrsmeans 1 litre of fuel is reqd for 15 mileshence with 10 ltrs of fuel, truck can travel 150 mil

equilateral triangles. The figure has 6 upward facing and 3 downward facing “size 1� equilateral triangles, 3upward facing and no downward facing “size 2†� triangles and 1 upward facing “size 3� triangle. It has a total of 13 equilateraltriangles of all sizes1.132.143.364.16Ans 13

10. The sum of three consecutive numbers of 4 numbers A,B,C and D are 4613,4961,5010 and 5099, then what is the largest number among A,B,C,D?

Let, S1,S2,S3,S4 be the sums of A,B,C,D taking 3 of them at a time.So, by the given data in the problem,it follows that :S1+S2+S3+S4 = 4613+4961+5010+5099 =>S1+S2+S3+S4 = 19683....[eqn 1]Now, Without the loss of generality we can assume S1= A+B+CS2= B+C+DS3= C+D+AS4= D+A+B

-------------------------------------------------------adding the above terms we get,S1+S2+S3+S4 = 3(A+B+C+D)=>19683 = 3(A+B+C+D); [From [eqn 1] ]=>(A+B+C+D)=(19683/3)=>(A+B+C+D)=6561

So,the greatest term among them =sum of all four - sum of lowest three termsSo,the greatest term among them=6561-4613 = 1948.

So,the greatest term among them = 1948

So, the correct answer is : OPTION a)1948

Find the last two digits of (1941^3881)*(1961^4181)

Number when divided by 5,2,3 successively in order to get remainder 0,1,2. What is remainder of same number, when divided by 2,3,5 successively?1,0,4

no need to calculate the correct no.number=(divisor*quotient)+remhere when div=3,rem=2 hence no=3k+2when div=2,rem=1 hence no=2(3k+2)+1when div=5,rem=0 hence no=5(2(3k+2)+1)+0finally number=30k+25now successively divide it by 2,3,525/2=12, rem=112/3=4, rem=04/5=0, rem=4

A test has 50 questions . A student scores 1 mark for a correct answer, -1/3 for a wrong answer, and-1/6 for not attempting a question .If the net score of a student is 32, the number of questions answered wrongly by that students cannot be less than?3

If N is a natural number and Nˆ3 has 16 factors then how many maximum factors can Nˆ4 have?

A rectangle of height 100 squares and width 200 squares. Squares is drawn on a graph paper. It is colored square by square from top left corner and moving across in a spiral turning right. Whenever a side of this rectangle or a colored square is reached. Which square is colored last (give its row and column numbers). The bottom right square is on row 100, column 200?a) 51,150b) 51, 50c) 50, 150d) 50, 50B

ast square to be coloured is (51, 50)

checkFor (4, 8) rectangle, ends at (3, 2)Likewise,For (2, 4) rectangle, ends at (2, 1)For (3, 6) rectangle, ends at (2, 5)For (4, 8) rectangle, ends at (3, 2)For (5, 10) rectangle, ends at (3, 8)For (6, 12) rectangle, ends at (4, 3)For (7, 14) rectangle, ends at (4, 11)For (8, 16) rectangle, ends at (5, 4)For (9, 18) rectangle, ends at (5, 14)For (10, 20) rectangle, ends at (6, 5)Analyzing the above 10 points:We can get some idea that,For Even number of rows, End points column increases 1 by previous column.For Odd number of rows, End points column difference of the present column and the previous even number column.For End point row, the value repeats two times from row 2.In our problem, (100, 200) i.e.Even number row,So End point column value must be 50 for 200 columns and End point row value must be 51 for 100 rows.For even number of rows and columns,Condition: Column =2*RowEndpoint (R, C) = {((Row/2) +1), Column/4}so last square to be coloured is (51, 50)

A city in the U S has a basketball league with three basketball teams, the Arêtes, the Braves and the Deities. A sports writer notices that the tallest player of the Arêtes is Shortest than the shortest player of the Braves. The shortest of the Deities is shortest of the Arêtes, while the tallest of the braves is taller than the tallest of the Arêtes. Which of the following can be judged with certainty?X) Paul, a brave is taller than David, an Arêtes.Y) David, a Deities, is shorter than Edward, an Arêtes.a) X only b) Both X and Yc) Neither X and Yd) Y onlyA

4. A,B and C can do some work in 36 days.A and B together do twice as much work as C.A and C together do thrice as much work as B.Time taken by C alone to complete the work :(a)72 (b)120 (c)96 (d)108108

wheels of diameters7cm and 14cm start rolling simultaneously from X and Y which are 1980cm apart,towards each other in opposite directions.both of them make same number of revolutions per second.both of them met after 10secs.what is the speed of smaller wheel66

A starts 3mins after B for a place 4.5km distant B, on reaching his destination, immediately returns and after walking a km meets A.A can walk 1km in 18 mins.what is the speed of B?

5 km

an express train was running at an average speed of 100kmph stopping for 3mins after every 75kms.the time taken by the train to reach the destination at a distance of 600km is?6 h 21 min

Aditya has 35 computer files that he wants to store on floppy disks. Each floppy disk has a capacity of 1.44 megabytes (MB). 2 of the files have size 0.8MB, 16 have size 0.7MB and the remaining 17 have size 0.4MB. No file can be split across floppy disks. What is the minimal number of floppy disks that will hold all these files?

161814151715

Let P be the product of any three consecutive positive odd integers each of which is less than 146. Then the largest integer dividing all such P is

1637153

if steve can mix 20 drinks in 5mins.sue can mix 20 drinks in 10mins and jack can mix 20 drinks in 15mins how much time will they take working together to mix 20drinks?2.72

If p, q, r and s are nonzero numbers such that p and q are the roots of the quadratic x2 + rx + s = 0 and r and s are the roots of the quadratic x2 + px + q = 0, then p + q + r + s =

2-204(-1 + √5)/2-2

You have 94m of lumber and want to make a border around your swimming pool. You contemplate the following shapes for the pool. Which of these shapes can be enclosed by 94m of lumber?

In the figures below X= 31m, Y = 16m and all angles except those in the parallelogram are right angled.

A and BA onlyB and DA and C3 , 2 , 6 , 4 , 0 , ? next term ????0

there are 12 pipes that are connected to a tank.some of them are fill pipes and the others are drain pipes.each of the fill pipes can fill the tank in 8 hours and each of the drain pipes can drain the tank completely in 6hours.if all the pipes are kept open, the empty tank gets filled in 24hours. how many of the 12pipes are fill pipes?7

if A and B work together , they will complete a job in 7.5days.however, if A works alone and completes half of the work and then B takes over and complete the remaining half alone, they will take 20days.how long will B alone takes to do the work if A is more efficient than B?30 days

grass in lawn grow equally thick in uniform rate. it takes 24days for 70cows and 60 days for 30 cows to eat the whole of the grass. how many cows are needed to eat the grass in 96days?10

if 20 men or 24 women or 40 boys can do a job in 12days working for 8 hours a day.how many men working with 6 women and 2 boys take to do a job four times as big working 5 hours a day for 12days?Amount of work done by 20 men = 24 women = 40 boys or amount of work done by 1 man = 1.2 women = 2 boys.

Let us therefore, find out the amount of men required, if only men were working on the task, to complete the

new job under the new conditions.

And then make adjustments for the women and boys who are already employed on the task.

The man hours required to complete the new task = 4 times the man hours required to complete the old task. (As the new task is 4 times as big as the old task)

So, the new task is 20 * 12 * 8 * 4 men hours task.

Let 'n' be the number of men required to complete the new task.Equating the men hours of task, we get 20 * 12 * 8 * 4 = n * 5 * 12. Or n = 128. 

The new task will require 128 men, if only men worked on the task to complete it. 

However, the problem states that 6 women and 2 boys are working on the job. 

6 women are the equivalent of = 5 men and 2 boys = 1 man. 

i.e., the equivalent of 5 + 1 = 6 men are already working on the project. 

Therefore, 122 more men are required to work with 6 women and 2 boys to complete the task.

122

a certain job was assigned to a group of men to do in 20days.but 12men did not turn up for the job and remaining people did the job in 32days.what is the original no. of members in the group?32

A,B,C are three book printing machines. A takes 8 mins, B takes 12mins and C takes 10mins to print a book. if they work each day for 12 hours.what is the no. of books they print on each day?222

12 machines can complete a work min 20days. 4 machines found to be defective working.the no. of days required to complete the task is?30

20 persons completed 1/3rd of the work in 12 days. the number of persons required to complete remaining work in next 12 days are?40

137+276=435,how much is 731+672=?534

what is the units digit of 13^24*68^57+24^13*57^68+1234+578?4

7^21+7^22+7^23+7^24=N,then what is the remainder when N is divided by 25?00

the sum of all possible two digit numbers formed from threee different one digit natural numbers when divided by the sum of original three no.s is equal to?Let the three nos. be x,y,zSo,the sum of all two digit nos formed by them is 10x+y+10x+z+10y+x+10y+z+10z+x+10z+y=22(x+y+z)So22(x+y+z)/(x+y+z)=22

how many values of the natural number n are possible so that the expression (16^2+7n+6)/n is also a natural number?2

a tiger is 50 of its own leaps behind a deer, the tiger takes 5 leaps per minute to the deer's 4. if the tiger and the deer cover 8m and 5m per leap respectively, what distance will the tiger have to run before it catches the deer?800

john walks on an escalator at a rate of 5 steps per second and reaches the other end in 10 secs. while coming back , walking at the same speed he reaches the starting point in 40seconds . what is the number of steps on the escalator?250

sandra while walking diametrically across a semicircular playground, takes 3mins less than if she had kept walking around the circular path from A to B. if she walks 60 metres a minute , what is the diameter of the playground?315

two cards are drawn from a from a pack of well shuffled card find the probability that one is club and other is king2/51

N=9+X+Y-Z, X,Y,Z(- 0-9, A wants to maximize and b wants 2 minimize, maximum value of N=? if A turns 1st...Ans is 20 X=6 or X=8 or X=5 Y=9 Y=9 Y=9 Z=4 Z=6 Z=3

using this strategy only we will get the optimal result!!!!!The whole strategy depends on the first no!!!!If we choose a no bigger than 5 or 6 it will make N minimum. If we choose a no smaller than 5 or 6, N will not be maximised.

and whatever no is chosen by A at the second time, B will have to put it in Z because if he wont, A will choose the last no as 0 and the varible Z will be of no use then

Out of 7 childrens, the youngest one is boy, what is the probability of the remaining 6 are also boy?1/64

Find the number of ordered triplets (a, b, c)of positive integers for which LCM (a, b)=1000, LCM (b, c) = 2000 and LCM (c, a) =2000.604080

50701000 = 2^3 * 5^32000 = 2^4 * 5^3Since LCM of a and b is 1000, they at the most contain 2 three times and 5 three times.Also the LCM of terms containing C is 2000, the term c should contain 2 four times, as a and b can contain 2 only three times.so c should either be2^4 = 16,2^4 * 5^1 = 802^4 * 5^2 = 4002^4 * 5^3 = 2000. 

Either a or b should have 2^3. Hence fixing 1 as 2^3 other can take values from 2^0-2^3.Hence total combination= 2*4 - 1(the one combination is 2^3,2^3 which we took twice)= 7

2 of the three should have power of 5 as 5^3, whereas the third can take 4 values in terms of powers of 5(5^0 - 5^3). Hence total no of such arrangement = 3!/2! *4 -2(this is for 5^3,5^3,5^3 which we took thrice) = 12 -2 =10

Hence ordered triplets will be 10*7 = 70n base 7 a number is written only using the digit 0,1....6 the no 135 in base 7 is 1*7^2+3*7+5=75 in base 10 what is the sum of the base 7 nos 1234 &6543 in base 7?11110

only a cube question was new which was based on paper folding whus anxswer is cand then one tea and cofee probabilty whus answer will be 50 andhorse cow question whus answer is 8000 andmother infant and her daughter weight question which was too easy and one question where u have to arrange sticks to form triangles 83 sticks whus answer is 43 andthen that 2^2n+2^274 somthing that question is dere in m4maths.com and then there was apple question whus answer was 350 and another question i dont remember whus answer was even 350mainly time work 4 questions which was all dam easy and that m/n ratio whus answer is 3/25 and sum of dice =10 aans is 1/8roy is now 4 years older than erik & half of that amount older than iris if in 2 years roy will be twice as old as erik then in 2 years what whould be roys age multiple of iris age?

A,B,C,D,E,F&G not necessarily in that order 7 letters for 1 to 7, D is 3 less than A, B is mid term, F is as much less than B as C is as much greater than D, G greatr than F,A-F=?A=6;B=4;C=5;D=3;E=1;F=2;G=7so ans of A-F=4

A no N is divided by D remainder 8, by3D remainder 21, then 2N divided by 3D, what is the remainder?????3

the length of the detroit mail is 120m and that of cincinnati is 80m.these two trains are running in the same direction with the velocities of 40 km/hr and 50km/hr respectively. the time taken by them to cross each other is?

72 sec

100 mtr race, A beats B by 15 mtr, B beats C by 10 mtrs, A beats C by 5 secs, speed of c?4.7

there are two boxes,one containing 10 red balls and the other containing 10 green balls.you are allowed to move the balls between the boxes so that when you choose a box at random and a ball at random from the choosen box,the probability of getting a red ball is maximized.the maximum probability is14/19

in a reading room of library,there are 10tables,4 chairs per table.in each table there are different number of people seated.how many tables will be left out without atleat 1 person?6

a lady has fine gloves and hats in her closet 18 blue,32 red and 25 yellow .the lights are out and it is totally dark in spite of the darkness.she can make out the difference between a hat and a glove.she takes out an item out of the closet only if she is sure that if it is a glove.how many gloves must she take out to make sure she has a pair of each colour?

Asked In tcs59

a train 270m long is running over a bride of length of 130m with a speed of 40m/s .what is the time taken by this train to cross the bridge?10 sec

A & B travelling from X to Y.A starts at 12 pm at a speed of 63m/hr.B at 1:30 pm at a speed of 84m/hr.At what time will be 34m ahead of A?A & B travelling from X to Y.A starts at 12 pm at a speed of 63m/hr.B at 1:30 pm at a speed of 84m/hr.

Distance covered by A in 1.5 hrs = 63*1.5 = 94.5 mtrs.

Extra distance coverd by B in 1 hr = 84-63= 21 mtrsAdditional distance required to be covered by B so that B is 34 mtr ahead of A = 94.5 + 34 = 128.5 mtrs time taken = 128.5/21 = 6.12 hrs = 6 hrs 7.2 minsSo B will be 34 m ahead of A at 7:37:12 PMif stallone had walked 20km/hr faster he would have saved 1hour in the distance of 600km.what is the usual speed of stallone?100km/hr

micheala goes to office at 1/3rd speed at which he returns from his office.if the average speed during the whole trip (i.e one round) is 12km/hr. what is the speed of the michel while he was going to his office?8

8 men can build a foundation 18m long,2m broad and 12m high in 10 days ,working 9 hours a day. find how many men will be able to build a foundation 32m long,3m broad and 9m high in 8days working 6hrs a day?30

60 men work take 40 days to complete a work.Now suppose that is 60 men start working abd every 5 days 5 peopleleave.In how many days will the work be complete

1,2,12,12,30,30

4. Anand, Babu, Charlie, Dhanush, and Eesha recently found out that all of their birthdays were on the same day, Though they were born in different years ,On their birthday, they were chatting about their ages- Dhanush said to Babu “I am nine years older than Eesha”- Eesha said to Babu “I am seven years older than Anand”- Babu said to Charlie “Eesha is younger than you”- Anand Said to Babu “ Your age is exactly 70% greater than my age”- Charlie said to Dhanush “The difference between our ages is six years”- Charlie said to Anand “I am ten years older than you”- Charlie said to Anand “Babu is younger than Dhanush”- Babu said to Charlie “The difference between your age and Dhanush’s is the same as the difference between Dhanush’s and Eesha’s” They were not telling the truth, When each one of them spoke to someone older, everything they said was true,But, when speaking to someone younger, everything they said was false. How old was Eesha?1.302.373.554.51

3 friends A, B, C went for week end party to McDonald’s restaurant and there they measure there weights in some order IN 7 rounds. A, B, C, AB, BC, AC, ABC. Final round measure is 155kg then find the average weight of all the 7 rounds?155 is the sum of ages of all three frndhere A+B+C+A+B+B+C+A+C+A+B+C=4(A+B+C)and we know that A+B+C=155hence total sum of 7 rounds = 4*155= 620and avg = 4*155/7

what is the remainder of 6^17+17^6 is divided by 7?

In the adjoining diagram, ABCD and EFGH are squres of side 1 unit such that they intersect in a square of diagonal length (CE) = 1/2. The total area covered by the squares is

A. Cannot be found from the informationB. 1 1/2C. 1 7/8D. None of these

10 people are there,they are shaking hands together,how many handshakes possible,if they are in no pair of cyclic sequence

F(n) is a function…where f(f(n))+f(n)=2n+3.F(n)=0;find f(2012) ?

rong question here f(0)=1then it will form a series f(0)=1f(1)=2;f(2)=3f(3)=4similary f(2012)=2013

A toy train can make 10 sounds sound changes after every 4 minute now train is defectiveand can make only 2 sounds find probability that same sound is repeated 4 timesconsecutively (1 OUT OF__)?simply (1/2)^4=1/16

Complete the sequence1,11,21,1211,111221,?312211each next number in the series describes the number of one's(1) and two's(2)in the previous element.for eg111221 will be read as three(3) ones(1),two(2) twos(2) and one(1) one(1).collectively taking the numbers, we have next number as 312211.Father works 5 times fastr dn hs son n hence cmptl a job 40 days earlr dan son.find d time dy would take 2 finsh d job togetherEfficiency of Work ratio of father to son =5:1Hence ratio of time taken = 1:5Let f takes x days and son takes 5x days.Given 5x-x=40=>x=10 days.Togeter they would do part of the work in 1 day=1/10+1/50=6/50=3/25So tatal days eq= 25/3 days to finish the work

the letters in SHOVEL are permuted in all ways then arranged in albhabetical order then word at 31 position.alphabetical order of the letters of the word SHOVEL are E,H,L,O,S,Vwords begin with E are 5!=120, words begin with EH are 4!=24 words begin with ELH are 3!=6we require 31st word then the answer will be ELOHSV

what is the next no in the series 70,54,45,41,,,,70-4^2=5454-3^2=4545-2^2=4141-1^2=40answer is 40

87th no. of series 2,10,26,50....sum= 2+10+26+50 upto 87 termssum= 2+10+26 86th +87th trm(by sub) 0=2+[8+16+24+ upto 86 terms]-87th trmso 87th trm=2+8[1+2+......+86]=2+8*86*87/2=2+29928=29930

3 cars A,B,C are in the race. A is twice as likely to win as B and B is thrice as likely to win as C. what is the probability that B will win,if only one can win the race.considering C=xthen B=3x, A=6x

probability of B will win is=3xtotal probability = 3x/(x+6x+3x)=3/10is this correct?

3 white chips , 7 blue and 16 green chips , 2 chips drawn from the box in succession what is the probability that one is blue and other is whiteno of pssible outcome=26c2=325no of ways of obtaining blue or white chips=7*3=21so probability=21/325

the first 44 positive integers are written in order to form the largest number N=12345678910111213..424344. what will be the he remainder when N is diveded by 45? am sorry..my prev ans was wrong..it will be like thisno will be div by 45 when it is divided y both 9 and 5a no is div by 9 if sum of digits is div by 9now sum of digits of given no is 270so the no is div by 9and since last digit is 4 when div by 5 it leaves rem 4let us say numbers such as 9,54...we see they are div by 9 but leaves rem 4 when div by 5..so when div by 45 they leave rem 9so req ans=9

if the price of petrol increased by 25% and john intends to spend only an additional 20% on petrol by how much % will he reduces the quantity of petrol purchased?If earlier consumption is 1 ltr for Rs 100, then 

New price of 1 ltr petrol = Rs 125

Oil purchase from Rs 120 = 120/125 = 24/25 ltrs% Reduction in qnty purchased = 100*(1/25)/1= 4%

john weighs twice as much as maria. maria's weight is 60% of bob's weight .dave's weight is 50% of lee's weight. lee's weighs 190% of john's weight.which of these weight the least?Mria

chen donates 15% of his current salary to charity. if his pay is increased by 10% and he still donates 15% of his salary by what % do his charity contributions increase?If initial salary is x, then initial charity amount = 0.15xnew charity amount = 1.1*0.15*x = 0.165x

% increase in charity = 100*0.015x/0.15x = 10%

a uniform circular coin required too much metal relative to its value.. it is decided that the diameter of the coin can be reduced by 10% by how much will weight of the coin reduce if everything else about the coin remains unchanged.t will be in same ratio as change in volume of coin.considering thickness remains unchanged,change in volume = change in area of one side.Earlier area = pi*r^2new area = pi*(0.9*r)^2 =pi*0.81*r^2 as radius is also reduced by 10%

% reduction in area = 100*0.19/1 = 19%

each crate of apples consists of 4layers of apples.each layer consists of 5 rows which has 6 apples each. it was decided that new types of crates which could accomodate 5 layers of apples with 5 rows in each layers but only 5 apples each row would be used for packing what is the percentage reduction in the no. of crates used for packing?4%

Earlier capacity = 120 applesnew capacity = 125 apples.

If there were 120*125 apples,earlier requirement of crates = 125new req= 120 % reduction = 100*5/125 = 4%

But if numbers are odd i.e. all crates are not used to full capacity , the reduction can be different.

if there are 130 apples,requirement of crates in both cases will be 2 hence no reduction.

two people A and B enter a race in which one can run to a point and return back.person A runs at 20 mph to and from the point. person B runs to the point at 10mph and at a 30mph while going back.who came first?A will come firstavg speed of A is 20avg Speed of B is 15so A will come first

carl covers a certain distance by car.he divides the complete distance into four equal parts and after finishing each part he increased his speed to twice the previous one. if, in the first part his speed was 30kmph then what is the average speed of the complete journey?f total distance was 4x, then total time taken = x/30 +x/60 + x/120 +x/240 = 15x/240= x/16

Average speed = 4x/(x/16) = 64 kmph

assume a project team of 4 students. the project guide had estimated that every one of the students would take approximately 200 working hours to complete the project .but the first two students lagged by 20 hrs each while the last two students completed their tasks 10hours each in advance.by what % is the actual working hours exceed the actual estimation?Total expected man hours = 200*4 = 800 man hoursActual manhours = 220*2 +190*2 = 440+380 = 820 man hours% by which the actual working hours exceed the actual estimation = 100*20/800 = 2.5%two express trains started at the same time from two stations X and Y proceed towards each other at speeds of 75 mph and 45 mph respectively. when they met , it was found that one express train has travelled 340 miles more than the other.what is the distance between the two stations X and Y?let the distance travel by first train be xthen other train will travel x+340now from question(x+340)/75=x/45i.e x=510mx+340=850total distance is 510+850=1360miles

two cyclists start biking from a trail's start 3hrs apart.the second cyclist travels at 10kmph and starts 3hrs after the first cyclist who is travelling at 6mph .how long will it take the second cyclist to catch up with the first?

a monkey could climb 6metres of a round pole in one minute but slipped 3 meters in the next minute. the length of the pole is 21metres. what is the time taken by the monkey to reach the top of the pole?11 mint....till 15 meter it will take (5*2)=10 minute....but then it will climb 6 meter and wl reach the top....so the ans is (10+1)=11 minute...

every sunday,mike jogs 3 miles.for the rest of the week , each day he jogs 1mile more than the previous day. what are the no. of miles mike jogs in 2 weekacc to me it should be 84 miles