Question

A man has Rs.900 in denominations of one-rupee coins, five-rupee coins and ten-rupee coins. The number of cons of each denomination is equal. What is the total number of coins possessed by the man?
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Answer 1

Solution :-

Let us assume that, the number of coins of each denomination are equal to x .

So,

→ Coins of Rs. 1 = x

→ Total amount = 1 * x = Rs. x

and,

→ Coins of Rs. 5 = x

→ Total amount = 5 * x = Rs. 5x

and,

→ Coins of Rs. 10 = x

→ Total amount = 10 * x = Rs. 10x

then,

→ Total amount = Rs. 900

→ x + 5x + 10x = 900

→ 16x = 900

→ x = 56.25

since number of coins is not a integer value , given data is incorrect .

if we take x = 56

→ Total amount = 1 * 56 + 5 * 56 + 10 * 56 = Rs.896

if take x = 57

→ Total amount = 1 * 57 + 5 * 57 + 10 * 57 = Rs. 912

Learn more :-

let a and b positive integers such that 90 less than a+b less than 99 and 0.9 less than a/b less than 0.91. Find ab/46

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