A sum of rs. 15000 amount gave rs. 4500 as interest in 5year. what is rate of interset?

Options

A. a. 3%
B. b. 4%
C. c. 5%
D. d. 6%

Answer

To find the rate of interest, we can use the formula for simple interest:

### Step-by-Step Solution:

1. **Identify the given values:**
- Principal (P) = Rs. 15,000
- Simple Interest (SI) = Rs. 4,500
- Time (T) = 5 years

2. **Use the formula for Simple Interest:**
\[ SI = \frac{P \times R \times T}{100} \]
Where:
- SI = Simple Interest
- P = Principal amount
- R = Rate of interest (which we need to find)
- T = Time in years

3. **Substitute the known values into the formula:**
\[ 4500 = \frac{15000 \times R \times 5}{100} \]

4. **Rearranging the equation to solve for R:**
- Multiply both sides by 100 to eliminate the fraction:
\[ 4500 \times 100 = 15000 \times R \times 5 \]
\[ 450000 = 75000R \]

5. **Divide both sides by 75000 to isolate R:**
\[ R = \frac{450000}{75000} \]

6. **Calculate R:**
\[ R = 6 \]

7. **Conclusion:**
The rate of interest is 6%.