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Maths Puzzle
The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is:
A. 3 B. 4
C. 5 D. 6
Read Solution (Total 1)
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- P(1+R100)n>2P
(1+20100)n>2
(65)n>2
65×65×65×65>2
So answer is 4 years - 11 years agoHelpfull: Yes(0) No(1)
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