In how many years will Rs. 10,000 amount to Rs. 13,310 at 10% per annum compound interest?
Correct answer C. 3 years
Explanation
13310/10000 = 1.331 = (1.1)³, so the time is 3 years. Year by year the amount grows 10000 → 11000 → 12100 → 13310, so the answer is 3 years.
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