SSC GD 2023 PYQ — Question 50

SSC GD Constable (English) - 16 Jan 2023 - Shift 2 • Quantitative Aptitude • Q50

Find the compound interest, compounding annually on ₹22,500 in 2 years, if the rate of interest is 5% for the first year, and 8% for the second year

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1 i.e. ₹3,015

Given 

Principal = Rs.22500

Rate for first year = 5% 

Rate for second year = 8%

Time = 2years

For the first year

Compound Intrest = Principal (1 + Rate/100)time

= 22500 × ( 1 + 5/100)1 = 22500 × (105/100)1

= 225 × 105 = Rs. 23625

Assume asRs. 23625 as a Principal

For the Second year 

Compound Intrest = Principal (1 + Rate/100)time

= 23625 (1 + 8 /100)1 = 23625 (108/100)

= 945 × 27 = Rs.25515

Now

Amount = principal + intrest

Intrest = Amount - Principal

=  25515 - 22500 = Rs. 3015

Hence Intrest is Rs.3015