In what time Rs 8000 will amount to Rs 12000 at 20% perannum simple interest.212212years312312years2 years3 years

To find the time it takes for Rs 8000 to amount to Rs 12000 at 20% per annum simple interest, you can use the formula for simple interest:

I = PRT/100

Where: I = Interest P = Principal amount (the initial amount of money) R = Rate of interest T = Time period

In this case, you know the Principal amount (P = 8000), the Interest (I = 12000 - 8000 = 4000), and the Rate of interest (R = 20). You want to find the Time period (T).

You can rearrange the formula to solve for T:

T = I * 100 / (P * R)

Substitute the known values into the formula:

T = 4000 * 100 / (8000 * 20)

T = 400000 / 160000

T = 2.5 years

So, it will take 2.5 years for Rs 8000 to amount to Rs 12000 at 20% per annum simple interest.