ABC26GN4171 · Compound Interest

Subject: General Aptitude · Chapter: Compound Interest · Exam: · Marks: · Difficulty:

The simple interest on a certain sum of money for 3 years at 8\% per annum is half the compound interest on ₹ 4000 for 2 years at 10\% per annum. The sum placed on simple interest is

(a)₹ 1550

(b)₹ 1650

(c)₹ 1750

(d)₹ 2000

Answer

Answer (as printed): C

Explanation

C. $\mathrm{I} .=₹\left[4000 \times\left(1+\frac{10}{100}\right)^{2}-4000\right]$ $$=₹\left(4000 \times \frac{11}{10} \times \frac{11}{10}-4000\right)=₹ 840 .$$

Explanation as extracted from the printed page; notation may be imperfect.

Open in whiteboard · Browse this chapter in the app