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A. 3
B. 4
C. 5
D. 6

Explanation:

P(1 + 20/100)n > 2P or (6/5)n > 2

Now, (6/5 * 6/5 * 6/5 * 6/5) > 2. So, n = 4 years.

Correct Answer: 4

Last Updated: February 07, 2020