SOLUTION: 15 boys earn rupees 900 in 5 days.how much will 20 boys earn in 7 days

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Question 759791: 15 boys earn rupees 900 in 5 days.how much will 20 boys earn in 7 days
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
first calculate 900 / 15 = 60, so each boy ears rupees 60 in 5 days
next calculate 60 / 5 = 12, so each boy earns rupees 12 each day
and calculate 20 * 12 * 7 = 1680
our answer is 20 boys will earn rupees 1680 in 7 days