Question

A certain sum of money amounts to ₹1110 in 100 days at 5% p.a. of simple interest. Find the simple interest paid.​

Answer 1

let us assume that the number of coins of 1 rupee are x

therefore coins of 50 paisa are 3x

amount of 1 rupee coin = 1×x=100x paisa

amount of 50 paisa coins=50×3x=150 paisa

100x+150x=4500

250x=4500

x=18

hope it helps you