A frult seller buys oranges at the rate of Rs. 10 per dozen and sells at the rate of Rs. 12 per dozen. His gain percent is:

Options

A. 0.2
B. 0.15
C. 0.12
D. 8 `1/3`%

Answer

To find the gain percent of the fruit seller, we can follow these steps:

### Step 1: Identify the Cost Price (CP) and Selling Price (SP)
- The cost price of oranges is given as Rs. 10 per dozen.
- The selling price of oranges is given as Rs. 12 per dozen.

### Step 2: Calculate the Gain
- Gain can be calculated using the formula:
\[ \text{Gain} = \text{Selling Price} - \text{Cost Price} \]
- Substituting the values:
\[ \text{Gain} = 12 - 10 = 2 \text{ Rs.} \]

### Step 3: Calculate the Gain Percent
- Gain percent can be calculated using the formula:
\[ \text{Gain Percent} = \left( \frac{\text{Gain}}{\text{Cost Price}} \right) \times 100 \]
- Substituting the values:
\[ \text{Gain Percent} = \left( \frac{2}{10} \right) \times 100 = 20\% \]

### Final Answer
- The gain percent of the fruit seller is **20%**.

---