Question

A sum of money at simple interest amounts to Rs. 690 in 3 years and to Rs. 720 in 4 years.
The initial sum of money is Rs. .

Answer 1

S.I. for 1 year = Rs. (720 - 690) = Rs. 30. S.I. for 3 years = Rs.(30 x 3) = Rs. 90. Principal = Rs. (690 - 90) = Rs. 600.

Answer 2

Answer:

600

Step-by-step explanation:

1 year SI=720-690=30

3 YEAR SI=3*30=90

P=690-90=600✅