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A person has deposited amount at 12% rate find out years to make principle double.

Posted by Rathi Kajal 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Rashmi Bajpayee 7 years, 1 month ago

Let amount deposited be P. Then amount after required years will be 2P.

Now, S.I. = P x R x T / 100

S.I. = P x 12 x T / 100 = 2PT/25

Amount = P + S.I

2P = P + (2PT/25)

P = 2PT/25

2T = 25

T = 12.5

Therefore the time required for principal double is 12.5 years.

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CBSE > Class 08 > Mathematics