Question

.) In what time will a sum of money treble itself at 13% p.a. compound interest.
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Answer 1

Answer:

sorry

because I can't understand your

Answer 2

Answer:

let A = 3

P = 1

R = 13%

T = t years

Now , Amount = P(1+R/100)^t

3 = 1( 1 + 13/100)^t

3= (1.13)^t

take log on both sides

0.4771 = t(0.0531)

therefore t = 8.98 years