The simple interest on a certain sum at 14% per annum for 
years is Rs. 3731. What will the amount of the same sum for 
years at half the earlier rate?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Rs. 11357
SI = PRT/100
According to question,
3731 = P × 14 × 13/400 or P = 8200
The amount of the same sum for years at half the earlier rate will be
Amount = Principal + (Principal × Rate × Time)
A = 8200 + (8200 × 7 × 11/200)
A = 8200 + (41× 7 × 11) = Rs. 11357