Question

Sanjiv has 60 rupee in 10-rupee coin and 5-rupee coin. If 10 rupee coins exceed the number of coins 5 rupee coins from 3, how many coins of each does he have

Answer 1

let the no. of 5 rupee coin = x

so, no. of 10 rupee coin = x+3

A.T.Q

$5x + 10(x + 3) = 60 \\ 15x + 30 = 60 \\ 15x = 30 \\ x = 2$

so, no. of 5 rupee coin = 2

and, no. of 10 rupee coin = 5