Question

a certain sum of money amounts to rupees 1260 in 2 years and to Rs 1350 in 5 years find the rate of interest​

Answer 1

3 years simple interest = 1350-1260 = 90

yearly interest = 90/3 = 30

amount invested = 1260-(30×2) = 1200

interest rate = 30/1200×100 = 2.5%