- A10
- B5
- C6
- D4
Step-by-Step Solution
Difference in level = (-450) - (-150) = -300 m. Steps = (-300) ÷ (-60) = 5 steps.
Answer: B) 5
A miner working at level -150 m wants to reach a deeper level at -450 m.
A lift moves in fixed steps of 60 m downward each time.
How many full steps down are needed to cover the difference between these two levels?
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