- A16 km/h
- B14.4 km/h
- C18 km/h
- D15 km/h
Step-by-Step Solution
B runs 100 m in 25 s: 4 m/s, so B takes 250 s. A takes s, speed m/s km/h. (14.4 km/h is B's speed.)
Answer: A) 16 km/h
In a 1 km race A beats B by 100 m or by 25 seconds. What is A's speed in km/h?
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