The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is:
Choose the correct answer
A) 3 B) 4 C) 5 D) 6 E) None of these
Explanation:   P(1 + 20/100)n &gt;2P =&gt; (6/5)n &gt;2   Now,(6/5 x 6/5 x 6/5 x	6/5	)&gt;2   So, n = 4 years.   ANSWER IS 4
<result>B</result>
The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is: