Sam has 3 wooden steps each of 6 cm, 2 steps each of 4 cm, and 1 step of 9 cm. Which step is the longest?
Answer
9 cm
The correct answer is 9 cm — Conclude that the longest step is 9 cm.
Step-by-step solution
- Identify the lengths of all steps: 6 cm, 4 cm, and 9 cm.
- Compare the lengths: 9 cm is larger than 6 cm and 4 cm.
- Conclude that the longest step is 9 cm.
Common mistake: ignoring the single 9 cm step
Concept tested: comparison of lengths
Published · How this solution was prepared and checked
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