Question

In how many years will rupees 1200 at the rate of 15% interest amount to 1740 ​

Answer 1

Answer: 3 years

Explanation:

Interest = 1740 - 1200 = 540

SI = prt / 100

540 = 1200 x 0.15 x t

540 = 180t

t = 540 / 180 = 3

Answer 2

Find the interest amount.

`I=1740-1200=540`

Use the formula for simple interest.

`I=prt/100`

Solve for t.

`540=1200 * 15\% * t`

`540=1200 * (15)/(100) * t`

`540=180t`

`t=(540)/(180)`

`t=3`

3 years.