A person buys 10 dozen pens at the rate of Rs 24 per dozen and sells them at the rate of 36 rs per dozen. What is his profit or loss?

Options

A. Rs 100, profit
B. Rs 100, loss
C. Rs 120, loss
D. Rs 120, Profit

Answer

To find the profit or loss incurred by the person when buying and selling pens, we can follow these steps:

### Step 1: Calculate the total cost price (CP)
The person buys 10 dozen pens at the rate of Rs. 24 per dozen.

\[ \text{Total Cost Price} (CP) = \text{Number of dozens} \times \text{Cost per dozen} \]
\[ CP = 10 \times 24 = 240 \text{ Rs} \]

### Step 2: Calculate the total selling price (SP)
The person sells the pens at the rate of Rs. 36 per dozen.

\[ \text{Total Selling Price} (SP) = \text{Number of dozens} \times \text{Selling price per dozen} \]
\[ SP = 10 \times 36 = 360 \text{ Rs} \]

### Step 3: Calculate the profit
Profit is calculated by subtracting the total cost price from the total selling price.

\[ \text{Profit} = SP - CP \]
\[ \text{Profit} = 360 - 240 = 120 \text{ Rs} \]

### Conclusion
The person makes a profit of Rs. 120.

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