Question

in how time will a sum of money treble itself at 25%per annum

Answer 1

Acc. to question,

let the some of money be x

then amount will be 3x

rate = 25

let time be t

then, A = P + I

or, 3x = x + (x * 25 * t)/100

or, 2x = 25xt/100

or, 25xt = 200x

or, t = 200x/25x

or, t  = 8yrs (Ans)

Answer 2

Answer:

8 years.

Step-by-step explanation:

• Let the principle be Rs. x.
• So Amount = 3 x.
• SI = A - P = 3 x - x = 2 x .
• Rate = 25%.

Time = (SI x 100 ) /( P x R)

        = 200 x / 25x  = 8 years.

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