# The sum deposited at the bank was :

The rate of simple interest per annum of bank being decreased from 5% to 3.5% the annual income of a person from interest was less b Rs.105. The sum deposited at the bank was

- Rs.7,200
- Rs.6,800
- Rs.7,000
- Rs.6,000

**Answer is Rs.7,000.**

**Explanation:-**

Let the sum deposit at the bank be Rs. X

According to the question,

X x 5/100 – X 3.5/100 = 105

(5 X – 3.5 X)/100 = 105

1.5 X = 105 x 100

15 X = 105 x 1000

X = 7 x 1000

X = 7, 000

Then, the sum deposited at the bank was Rs. 7, 000.

Hence, the correct answer is option (3) Rs. 7, 000.