A sum of money doubles itself at simple interest in 20 years. It will be four times in Options: A . &nbsp50 years B . &nbsp60 years C . &nbsp70 years D . &nbsp none of these

A sum of money doubles itself at simple interest in 20 years. It will be four

Question

A sum of money doubles itself at simple interest in 20 years. It will be four times in

Options:

A . 50 years

B . 60 years

C . 70 years

D . none of these

Answer: Option B

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