The cost price of 12 oranges is equal to the selling price of 15 oranges. Find the loss per cent.

Answer

To solve the problem step by step, we will follow the information provided in the question and the calculations outlined in the video transcript.

### Step-by-Step Solution:

1. **Understand the Given Information:**
- The cost price (CP) of 12 oranges is equal to the selling price (SP) of 15 oranges.

2. **Assume the Cost Price of Each Orange:**
- Let's assume the cost price of each orange is ₹1.
- Therefore, the cost price of 12 oranges = 12 × ₹1 = ₹12.
- The total cost price of 12 oranges is ₹12.

3. **Calculate the Selling Price of 15 Oranges:**
- According to the problem, the selling price of 15 oranges is equal to the cost price of 12 oranges.
- So, SP of 15 oranges = CP of 12 oranges = ₹12.

4. **Calculate the Cost Price of 15 Oranges:**
- Since the cost price of each orange is ₹1, the cost price of 15 oranges = 15 × ₹1 = ₹15.

5. **Determine the Loss:**
- Loss = Cost Price - Selling Price
- Loss = ₹15 - ₹12 = ₹3.

6. **Calculate the Loss Percentage:**
- Loss Percentage = (Loss / Cost Price) × 100%
- Loss Percentage = (₹3 / ₹15) × 100%
- Loss Percentage = (1/5) × 100% = 20%.

### Final Answer:
The loss percentage is **20%**.

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