In how many years will a sum of money doubles itself at 5% per annum on simple interest?

In how many years will a sum of money doubles itself at 5% per annu

1.	In how many years will a sum of money doubles itself at 5% per annum on simple interest?
A.	22 years
B.	20 years
C.	21 years
D.	29 years
Answer» C. 21 years

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In how many years will a sum of money doubles itself at 5% per annum on simple interest?

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