Q.9 Find the amount to be paid at the end of 3 years in each case.
(a) Principal = Rs. 1200 at 12% p.a.
(b) Principal = Rs. 7500 at 5% p.a.

$$\therefore$$ Interest = $$\frac{P×R×T}{100}$$ =$$\frac{1200×12×3}{100}$$= Rs. 432
$$\therefore$$ Interest = $$\frac{P×R×T}{100}$$ =$$\frac{7500×5×3}{100}$$ =Rs.1125