1 ton of copper decreased by 20% Last year this decreased was by 1320 pounds. What will the new price of one ton of copper be now?

To find the new price of one ton of copper, let's break down the problem step by step:

1. **Convert tons to pounds**:  
   1 ton = 2000 pounds. 

2. **Calculate 20% of one ton**:  
   20% of 2000 pounds is:
   \[
   0.20 \times 2000 = 400 \text{ pounds}.
   \]
   According to the problem, this 20% decrease in one ton of copper is said to be equivalent to 1320 pounds. This means we need to clarify this discrepancy as 400 pounds should be the decrease if it's purely 20% of 2000 pounds.

3. **Find the new weight**:  
   Since 20% of one ton (2000 pounds) is supposed to be the decrease:
   \[
   2000 - 400 = 1600 \text{ pounds}.
   \]

4. **Verify the decrease with 1320 pounds**:  
   Since it's given that the decrease was actually 1320 pounds, let’s ensure the problem statement is consistent. If 1320 pounds was the actual decrease, then the actual percentage decrease is:
   \[
   \frac{1320}{2000} \times 100 = 66\%.
   \]

5. **Adjust the final price**:  
   To find the new price per ton after the actual decrease of 1320 pounds:
   \[
   2000 - 1320 = 680 \text{ pounds}.
   \]

**Conclusion**: The new price per ton (given the total weight now is 680 pounds) would depend on the price per pound, but the actual tonnage now reflects a weight reduction of 66%, not just 20%. Therefore, if the new price of copper should be proportional to the weight, it would be the price equivalent to 680 pounds.

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1 ton of copper decreased by 20%. Last year this decrease was by 1320 pounds. What will the new price of one ton of copper be now?

Discover how to calculate the new price of copper after a 20% decrease, equivalent to 1320 pounds. This problem involves percentage decrease, unit conversions, and step-by-step calculations. Suitable for students in Grades 6-8.

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