SSC CGL 2023 PYQ — Question 23

The correct answer is option 4 i.e. 2.

Given that

C.I on 10000 at 20% per annum compounded half yearly = 4641

Hence the total amount = 14641

Formula used 

Amount = P (1 + $\frac{R/2}{100}$)²ⁿ

Substituting the value we get

⇒ 14641 = 10000(1 + 10/100)²ⁿ

Solving for n we get

⇒ $\frac{121}{100}$ =($\frac{11}{10}$)ⁿ

Hence n = 2

Hence, the sum was invested for 2 years.