In a group of people solicited by a charity, 30% contributed tk. 40 each, 45% contributed tk. 20 each and the rest contributed tk. 12 each. What percentage of the total amount came from people who gave tk. 40 each?

A    25%

B    30%

C    40%

D    45%

Solution

Correct Answer: Option E

 

30% contributed=40×30%=12 Tk

45% contributed=20×45%=9 tk

Rest={100-(30+45)}%=25% contributed= 3 tk

total=12+9+3=24

The percentage of the total amount came from people who gave tk. 40 each=(12×100)/24=50%

 

 

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