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## A sum of money placed at compound interest doubles itself in 5 years. It will amount to eight times of itself in:

Asked On2019-06-12 12:40:26 by:amitoj-singh

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Download question setAnswersFormula for this is n2= n1 ^(t2/t1)

n= Number of times

t= years

n2=8 =2^3

n1=2(doubles)

t2=? (we have to find)

t1=5

Applying this in formula

2^3=2^(t2/5)………2 cancelled each other

3=t2/5

t2= 15(answer)

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