The simple interest in 16 years is Rs. 2400. What will be the simple interest, if the initial principal amount is increased by 8%, 10% and 15% respectively after every 4 year?

2598

Simple interest for one year = \(\frac{2400}{16}\) = 150

ATQ, 

First Four years     next four years      next four years        next four years

150 × 4             150 × 4 × 8%        150 × 4 × 10%       150 × 4 × 15%

600                           648                   660                            690

Total simple interest = 600 + 648 + 660 + 690 = Rs.2598