Arithmetic Ability
Compound Interest

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Q.

The least number of complete years in which a sum of money put out at 20% C.I. will be more than doubled is  ?

View Answer

Correct choice: B

Explanation:

P(1+20/100)n > 2P Now, (6/5 x 6/5 x 6/5 x 6/5) > 2. So, n = 4 years.
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