AlgebraEasy–MediumGreatest length under a combined-dimension limit
Algebra practice question
A parcel service accepts a parcel only if its length plus its girth is at most 300 centimetres. A parcel has a girth of 180 centimetres. What is the greatest possible length, in centimetres, of the parcel?
Answer: 120
L + 180 ≤ 300 → L ≤ 120.
Common wrong answers
- If you answered 60
- 60 halves the correct answer.
- If you answered 300
- 300 ignores the girth.
- If you answered 480
- 480 adds the girth instead of subtracting it.
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