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% compound interest will be more than doubled is:

View Answer

Correct choice: B

Explanation:

P(1+20/100)n>2P⇔(6/5)n>2 (6/5×6/5×6/5×6/5)>2 so, answer is 4 years
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