Question

A sum of money amounts to Rs. 1680 in 2 years and to Rs. 1860 in 4 years at simple interest. Find the sum and the rate of interest per annum.

Answer 1

Answer:

First si

P=si *100 /r*t

P=1680*100/2

84000

Second si =1860*100/4

46500

First rate =1680/2

=840

Second rate =1860/4

465