Question

₹ 12000 becomes ₹ 36000 at simple interest in 9 years. Find the rate per cent per annum.

Answer 1

Answer:

1296000 hai ak,,,,,,,,,

Answer 2

Answer:

Answer is 11%

Step-by-step explanation:

Principle Amount=12,000=P

Final Amount=36,000=F

T=9years

Rate=?

>Simple interest=Final Amount - Principle Amount

=36,000 - 12,000

=24,000

Now, we know that

Simple interest=P× R×T by 100

12,000=12,000×R×9 by 100 (12,000 will be canceled)

R=100 by 9=11%

Therefore, the rate per annum is 11%