Question 127

A Person has a certain number of two rupee coins and some five rupee coins.If the total number of coins is 16 and thwe value of coins is ₹50 ,then the number by which the number of two rupee coins exceeds number of five rupee coins is

Solution

let he have x number of 2 Rs coin and y number of 5 Rs coin

then we can say that

2x + 5y = 50 equation 1

x + y = 16 equation 1 on solving equation 1 and 2 we get

x = 10 number of 2 Rs coin

y = 6 number of 2 Rs coin

then by question x - y = 10 - 6 = 4 Answer

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