- A100 km/h
- B25 km/h
- C81 km/h
- D90 km/h
Step-by-Step Solution
From pole 1 to pole 10 there are 9 gaps: m in 18 m/ km/h. (Counting 10 gaps gives 100 km/h.)
Answer: D) 90 km/h
Electric poles beside a track stand 50 m apart. A train's engine takes 18 seconds to go from the 1st pole to the 10th pole. What is the train's speed?
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