Ms. Revathi borrowed Rs. 600 at 6% per annum simple interest. What amount (in rupees) will she pay to clear her debt after 4 years?

Options

A. 700
B. 150
C. 744
D. 144

Answer

To solve the problem of how much Ms. Revathi will pay to clear her debt after 4 years, we can follow these steps:

### Step 1: Identify the given values
- Principal (P) = Rs. 600
- Rate of interest (R) = 6% per annum
- Time (T) = 4 years

### Step 2: Calculate the Simple Interest (SI)
The formula for calculating Simple Interest is:
\[ SI = \frac{P \times R \times T}{100} \]

Substituting the values into the formula:
\[ SI = \frac{600 \times 6 \times 4}{100} \]

### Step 3: Simplify the calculation
First, multiply the numbers in the numerator:
\[ 600 \times 6 = 3600 \]
Then multiply by 4:
\[ 3600 \times 4 = 14400 \]
Now divide by 100:
\[ SI = \frac{14400}{100} = 144 \]

### Step 4: Calculate the Total Amount to be paid
The total amount (A) to be paid after 4 years is the sum of the principal and the interest:
\[ A = P + SI \]
Substituting the values:
\[ A = 600 + 144 = 744 \]

### Conclusion
Ms. Revathi will pay Rs. 744 to clear her debt after 4 years.

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