1.

At what rate of simple interest will some amount be doubled in 5 years?​

Answer»

ong>Answer:

Let PRINCIPAL = p

AMOUNT = 2p

so SIMPLE interest(si) = Amount - Principal = 2p - p = p

Time = 5 years

So,

rate \: = \frac{si \: \times 100}{p \: \times \: t} = \frac{p \: \times 100}{p \times 5} = 20


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