SSC CGL 2022 PYQ — Question 51

SSC CGL - 21 April 2022 - Shift 2 • Quantitative Aptitude • Q51

What is the compound interest (in RS) on a sum of Rs 62,500 for 2 years at 12% p.a., if the interest is compounded 8- monthly?

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. 16232

Principal = Rs. 62500

Time = 2 years

Rate = 12%

Compound Interest = P[(1 + R/100)T - 1]

When interest is being calculated at 8 monthly -

Rate = (R/12) × 8

Time = T × (3/2)

12% interest for 12 months. So, 8% interest for 8 months

Time = 2 × (3/2) = 3

C.I. = 62500[(1 + 8/100)3 - 1] = 62500[(27/25)3 - 1] = 62500[(19683/15625) - 1] = 62500[(19683 - 15625)/15625] = 62500[(4058)/15625] = 16232