Question

Find simple interest: P = Rs.400, R=15%, T=13 years

• A. Rs. 760
• B. Rs. 780
• C. Rs. 840
• D. Rs. 640

Answer 1

The correct option is B Rs. 780

To calculate Simple interest, you can always use the formula-
Simple Interest (SI) Formula
$SI=\frac{Principal\times Rate\times Time}{100}$
where
SI is the total simple interest payable
Principal is the sum of money on which the interest accrued over time
Time is the length of period in years
Rate is the percentage of which interest accrued over the time
Simple Interest $=\frac{PRT}{100}=\frac{400\times 15\times 13}{100}$
So, S.I = Rs. 780