1) What annual installment will discharge a debt of Rs. 1092 due in 3 years at 12% simple interest ? A) Rs. 300 B) Rs. 350 C) Rs. 400 D) Rs. 325 E) Rs. 320 Answer: Option DExplanation:Let installment be $x$ Then $\left\{x+\frac{(x\times 12\times 1)}{100}\right\}$ $+\left\{x+\frac{(x\times 12\times 2)}{100}\right\}$ $+x$ $=1092$ $x$ = Rs.325