Given Principal, P = Rs 70000 Rate, R = 5% p.a Time, T = 3 years Concept used: Amount, A = P + SI Simple interest, SI = PRT/100 Calculation: Amount = P + S.I. = P + P × R × T/100 = 70000 + 70000 × 5 × 3/100 = Rs. 80500 ∴ The amount after 3 years is Rs 80500.