SSC CHSL 2020 PYQ — Question 60

SSC CHSL - 15th October 2020 - Shift 1 • Quantitative Aptitude • Q60

The compound interest on Rs.4,000 after 3 year is Rs.630.50. Then the rate of interest compound yearly is:

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e 5%

Understanding

Tricks

Application

Rate = time√Principle = time√Amount

So

Rate = 3√4000 = 3√4630.5

⇒ 3√800 = 3√926.1

⇒ 3√8000 = 3√9261

⇒ 20 = 21

Now

Difference = 1

So

Rate = 1/20 × 100

= 5%