Question

A sum of Rs 1,780 become Rs 2,136 in 4 years.
Find : (1) the rate of interest .
(2) the sum that will become Rs 810 in 7 years at the same rate of interest .

Answer 1

Answer:

Answer. ∴ Rate = (S.I. × 100)/(P × T) = (356 × 100)/(1780 × 4) = 5% p.a.