What is simple interest on Rs1800 for 10 yr at the rate of 10% per annum?

Options

A. Rs 3600
B. Rs 1000
C. Rs 360
D. Rs 1800

Answer

To calculate the simple interest, we can use the formula:

\[ \text{Simple Interest (SI)} = \frac{P \times R \times T}{100} \]

Where:
- \( P \) = Principal amount (the initial amount of money)
- \( R \) = Rate of interest per annum
- \( T \) = Time in years

Given:
- \( P = 1800 \) (the principal amount)
- \( R = 10\% \) (the rate of interest)
- \( T = 10 \) years (the time period)

Now, let's substitute the values into the formula:

1. **Substituting the values:**
\[ SI = \frac{1800 \times 10 \times 10}{100} \]

2. **Calculating the multiplication:**
\[ SI = \frac{1800 \times 100}{100} \]

3. **Simplifying the equation:**
\[ SI = 1800 \]

Thus, the simple interest on Rs. 1800 for 10 years at the rate of 10% per annum is **Rs. 1800**.