Question 25

If 15 boys earn Rs.900 in 5 days, how much will 20 boys earn in 7 days ?

Solution

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Amount of money earned by a boy in a day = $$\frac{900}{15*5}$$ = Rs. 12

Hence, amount of money earned by 20 boys in 7 days = 20*7*12 = Rs. 1680

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