Question

A sum of money at simple interest amounts to 815 in 3 years and to 854 in 4 years. The sum is:
A. 650
B. 690
C. 698
D. 700

Answer 1

Answer:

A sum of money at simple interest amounts to 815 in 3 years and to 854 in 4 years. Interest for 1 year = 854-815= Rs 39. let x be the sum and i be the interest amount for 1 year as per given info x + 3*i = 815 x + 4*i = 854 hence i = 39. so sum x is 815-3*39=698.