SSC CGL Official PYQQuantitative Aptitude12 Sep 2025 (Shift 1)
Q.
A sum becomes ₹7,200 in 2 years and ₹8,640 in 3 years at compound interest. What is the original principal?
A
a) ₹4,800
B
b) ₹5,000
C
c) ₹5,200
D
d) ₹5,500
Correct Answer: Option B)
Detailed Step-by-Step Explanation:
Rate of interest = (8640 – 7200) / 7200 = 1440 / 7200 = 20%. P * (1 + 0.2)^2 = 7200 => P * 1.44 = 7200 => P = ₹5,000.