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1. What is the percentage to simple interest if the capital of 100 is doubled in 5 years?
- A. 20%
- B. 20%
- C. 20%
- D. 20%
Answer: Option A
Explanation:
In 5 years, capital will be 200 tk
so, the interest = (200 - 100) = 100tk
we know, i = pnr
or, r = i/pn
or, r = 100/(100*5)
∴r = 1/5
the rae of simple interest = 1/5 * 100% = 20%
ans: 20%
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