Question

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

Answer 1

Answer: 3 years

Step-by-step 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.

$540=1200 \times 15\% \times t$

$540=1200 \times \frac{15}{100} \times t$

$540=180t$

$t=\frac{540}{180}$

$t=3$

3 years.