click on screen a shop buys and sells products buy at dh 4 sell at dh 9 profit dh 5 a bank is a...
Post on 15-Jan-2016
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Click on screenA shop buys and sells products
Buy at Dh 4
Sell at Dh 9
Profit Dh 5
A bank is a money shop
Buy at Dh 4.24135
Sell at Dh 4.34971
Profit Dh 0.10836
The bank buys and sellsFOREIGN CURRENCY
By buying and selling one Euro,
the bank makes a profit of 11 fils
Use headphones or loudspeakers
The customer sells Euros
The bank buys Euros
buy sell
Euro 4.24135 4.34971
Use the buy rate
1 = Dh
Set up a proportio
n
1 EURO : Dh 4.24135 = …… EURO : Dh …….50 x
Solve the proportio
n
x = 50 x 4.24135
x = 212.0675
For 50 Euros the customer gets Dh 212.07
The customer buys Euros
The bank sells Euros
buy sell
Euro 4.24135 4.349711
1 EURO : Dh 4.34971 = …… EURO : Dh ……. x
x = 100 / 4.34971
x = 22.99003842
100For 100 dirhams the customer gets Euro 22.99
= Dh
Do not think in Dirhams
Think in Euros
The customer exchanges 100 Dirhams
Use the sell rate Set up a
proportion
Solve the proportio
n
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