SSC Selection Post 2022 PYQ — Question 64

SSC Selection Post - Matriculation Level - 3 Feb 2022 - Shift 2 • Quantitative Aptitude • Q64

The simple interest on sum of money at 15% per annum for 2 years is Rs.2,700 compounded annually, what would be the compound interest (in Rs.) on the same sum for the same period and at rate of interest?

Show answer & explanation

Correct answer: D

Explanation

The correct answer is Option 4 i.e. 2,902.50.

SI = PRT/100

According to the given question,

2700 = P × 2 × 15/100

⇒ P = 9000

Now, Amount = P(1 + R/100)T

⇒ Amount = 9000(1 + 15/100)2

⇒ Amount = 9000 × 23/20 × 23/20

⇒ Amount = 11902.5

Now, CI = Amount - Principal

⇒ CI = 11902.5 - 9000

⇒ CI = 2902.5