Two cartons of 10 shirts each cost 12,000. What will 4 cartons of 15 shirts each cost?

Answer

To solve the problem step by step, we will follow the reasoning outlined in the video transcript.

### Step-by-Step Solution:

1. **Understanding the Given Information:**
- We know that 2 cartons contain 10 shirts each.
- Therefore, the total number of shirts in 2 cartons = 2 cartons × 10 shirts/carton = 20 shirts.
- The total cost for these 2 cartons is 12,000 rupees.

2. **Finding the Cost per Shirt:**
- We have established that 20 shirts cost 12,000 rupees.
- To find the cost of one shirt, we divide the total cost by the total number of shirts:
\[ \text{Cost per shirt} = \frac{12,000 \text{ rupees}}{20 \text{ shirts}} = 600 \text{ rupees/shirt} \]

3. **Calculating the Total Number of Shirts in 4 Cartons:**
- We need to find the cost for 4 cartons, where each carton contains 15 shirts.
- The total number of shirts in 4 cartons = 4 cartons × 15 shirts/carton = 60 shirts.

4. **Calculating the Total Cost for 60 Shirts:**
- Now that we know the cost per shirt is 600 rupees, we can find the total cost for 60 shirts:
\[ \text{Total cost} = 60 \text{ shirts} × 600 \text{ rupees/shirt} = 36,000 \text{ rupees} \]

5. **Conclusion:**
- Therefore, the cost for 4 cartons of 15 shirts each is 36,000 rupees.

### Final Answer:
The cost for 4 cartons of 15 shirts each is **36,000 rupees**.

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