To determine the most likely error made by the student, let's analyze the data provided.
The values given in tons and pounds are:
- 2 tons = 4,000 pounds
- 4 tons = 8,000 pounds
- 10 tons = 20,000 pounds
- 12 tons = 24,000 pounds
Since 1 ton is equal to 2,000 pounds, the correct conversions from tons to pounds are based on multiplying the number of tons by 2,000.
Now, let's evaluate the possible errors:
-
The student used the ratio of 2:2,000 instead of 1:2,000.
This would suggest an incorrect understanding of the ton-to-pound conversion. The correct conversion is 1 ton = 2,000 pounds. Therefore, this error doesn't seem likely. -
The student used the ratio of 1:4,000 instead of 2:4,000.
This doesn't apply here because the conversions are based on a ratio of 2,000 pounds per ton, not involving 4,000. -
The student multiplied by 6 instead of 10.
This scenario is unlikely without specific context showing why this multiplication would occur. -
The student multiplied by 10 instead of 6.
Similar to point 3; without more context, we cannot ascertain where this error would originate.
Given our analysis, the first option seems to be the most relevant, as it highlights a misunderstanding of the correct ton-to-pound conversion. Therefore:
The student used the ratio of 2:2,000 instead of 1:2,000.
This option signifies a misunderstanding of how many pounds are in one ton.