AlgebraEasy–MediumMost trips under a weight limit
Algebra practice question
A lift can carry at most 360 kilograms. Boxes of tiles weigh 12 kilograms each. What is the greatest number of boxes the lift can carry in one trip?
Answer: 30
12n ≤ 360 gives n ≤ 30.
Common wrong answers
- If you answered 29
- 29 fits, but 30 is the greatest.
- If you answered 31
- 31 boxes weigh 372 kg, over the limit.
- If you answered 4320
- 4,320 multiplies 360 by 12 instead of dividing.
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