79590608 practice test 02 mathematical aptitude

8/2/2019 79590608 Practice Test 02 Mathematical Aptitude

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Practice Test 02-Mathematical Aptitude

Domain: Class X Test Code: TST2007AT204532631 Course:Admission Test

Total Questions: 15 Total Time: 90 min. Maximum Marks: 55.0

Section Details:

Section 1

Subjects: Class X Maths

Topics: Polynomial, Arithmetic Progression, Linear Equation in Two variables, Mensuration, Trigonometry

Total Questions: 10

Section 2

Subjects: Class X Maths

Topics: General Topic, Arithmetic Progression, Linear Equation in Two variables, Mensuration

Total Questions: 5

Section 1Section Title: Section 1

Total No. of

Questions:10

Subjects:Class X Maths

1. If are the zeroes of polynomial then the value of is :

(A). (B).

(C). (D).

CorrectAnswer

B

Explanation

Now

(Marks: 3.0, Negative Marks : 0.0).

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Vidyamandir Classes Admission test for IITJEE 2014


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2. If zeroes of are in AP, then

(A). (B).

(C). (D). None of these

CorrectAnswer

A

Explanation

Let are zeroes

Now sum of all the roots

is one zero of the polynomial

Now replace byp


3. If and represent coincident lines, then a and b satisfy the equation ?

(A). (B).

(C). (D).

CorrectAnswer

C

Explanation

We know that when lines are coincident lines then

From (1) and (3)


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Let denote the sum ofn terms of an AP whose first term is a. If common difference dis given by

, then kis :

(A). 1 (B). 2

(C). 3 (D). None of these

CorrectAnswer

B

Explanation


5. If is the sum of an AP of 'n' odd number of terms and be the sum of the terms of series in odd places of

the same AP then

(A). (B).

(C). (D).

CorrectAnswer

A

Explanation

Ratio


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4.



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6. In an AP, . Then is equal to :

(A). 0 (B).

(C). (D). pq

CorrectAnswer

B

Explanation

................. (i)

................... (ii)

Solving (i) and (ii), we get ................... (iii)

using (i), (iii)


7. In an acute angled , if and . Then value ofA is :

(A). 60 (B). 52.5

(C). 67.5 (D). None of these

CorrectAnswer

A

Explanation

............. (i)

.................. (ii)

We know, In ..................... (iii)

Add (i), (ii) we get, B = 52.5, subtracting (i) from (ii), C-A = 7.5o ............... (iv)

Subtracting (iii) and (iv) we get A = 60o


8. If angleA, B, Cof form an increasingAP, then Sin B =

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(A). (B).

(C). 1 (D).

Correct

AnswerB

Explanation

Let

Hence


9. In a the value of is given by then the equation whose roots are sinA and tanA.

is :

(A). (B).

(C). (D).

Correct

AnswerD

Explanation


10.The square root of is :

(A). (B).


CorrectAnswer

B

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Explanation

Square root of


Section 2Section Title: Section 2

Total No. of

Questions:5

Subjects:Class X Maths

11.The value of : is :

(A). 1 (B). 0

(C). 0.1 (D). None of these

CorrectAnswer

C

Explanation


12.In the system of equations the value ofxyis :

(A). (B).

(C). (D). 1

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CorrectAnswer

B

Explanation

Case (i) Case (ii)


13. In the diagram if pointsA, B, Care points of tangency. Assume system is symmetrical about CD and thehorizontal lines are parallel. The value ofx is :

(A). (B).


CorrectAnswer

C

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Explanation

OC = 3 / 16


14. Two equal parallel chords are drawn 8cm apart in a circle of radius 8cm. The area of that part of the circle thatlies between the chords is :

(A). (B).


CorrectAnswer

A

Explanation

In

[using ]

Hence

Area of shaded region

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[ here two symmetric regions exist]

Area ofABCD portion =


15. The value of is :

(A). (B).


CorrectAnswer

B

Explanation


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79590608 practice test 02 mathematical aptitude

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