Question 11
The compound interest, compounded annually, on Rs 30,000 at 9% per annum is Rs 5,643. The time period (in years) is:
Step-by-Step Solution
The compound interest is ₹5,643 on a principal of ₹30,000 . The interest as a fraction of the principal is 5,643/30,000 = 0.1881.
At 9% per year, the two-year compound-interest factor is (1.09)² = 1.1881. This matches the given amount factor.
Therefore, the investment period is 2 years