How many years will it take for Rs. 8,400 to amount to Rs. 11,928 at a simple interest rate of 7% per annum?

Correct option is D

Given:
Amount= Rs. 11928
Principal = Rs.8400
Rate = 7%
Formula Used:
Simple Interest = Amount- Principal
Simple Interest = $$= \frac{P \times R \times T}{100}$$ 

Solution:

​Simple Interest =11928-8400= 3528

3528= $$= \frac{8400 \times 7 \times T}{100}$$ 

Time = 6 years