Allied & ICAR Exam Bank • ALLIED_2158 NAT • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

A sum of Rs 16,000 invested at 10% per annum compound interest, compounded semi-annually, will yield an amount of Rs 18,522 in how many years? (Give answer in years, e.g., 1.5)

Answer Key:

1.5

Step-by-Step Solution & Explanation

Semi-annual rate = $5\%$. $18522 = 16000(1.05)^{2T} \implies 18522/16000 = 9261/8000 = (21/20)^3 = (1.05)^3$. Thus $2T = 3 \implies T = 1.5$ years.
← Previous (ALLIED_2157) Next (ALLIED_2159) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test