# What will be the Sum? If

A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

- Rs. 650
- Rs. 690
- Rs. 698
- None of these

**Answer: (3) 698.
Explanation:-**

SI for 1 year = 854 – 815 = 39

SI for 3 years = 3 x 39 = 117

Therefore, Principal = 815 – 117 = 698

Hence, the answer is (3) Rs.698