Arun got Rs. 0.70 as gain over Rs. 70. Find his gain percent.

Options

A. 1%
B. `0.01`%
C. `0.1`%
D. `7%`

Answer

To find Arun's gain percent, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Gain and Cost Price (CP)**:
- Gain (Profit) = Rs. 0.70
- Cost Price (CP) = Rs. 70

2. **Use the Formula for Gain Percent**:
- The formula for gain percent is given by:
\[ \text{Gain Percent} = \left(\frac{\text{Gain}}{\text{Cost Price}}\right) \times 100 \]

3. **Substitute the Values into the Formula**:
- Substitute the gain and cost price into the formula:
\[ \text{Gain Percent} = \left(\frac{0.70}{70}\right) \times 100 \]

4. **Calculate the Fraction**:
- Calculate the fraction:
\[ \frac{0.70}{70} = 0.01 \]

5. **Multiply by 100 to Get the Gain Percent**:
- Now, multiply by 100:
\[ \text{Gain Percent} = 0.01 \times 100 = 1\% \]

### Final Answer:
Arun's gain percent is **1%**.