A sum of money triples itself in 20 years. When will it double?
Options are:
a) 5 years
b) 15 years
c) 10 years
d) 8 years[email_link]

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RajniAptitudeArithmeticContest
A sum of money triples itself in 20 years. When will it double? Options are: a) 5 years b) 15 years c) 10 years d) 8 years