- A8 s
- B6 s
- C4 s
- D10 s
Step-by-Step Solution
B takes 20 s, so C takes 24 s. A : B , so A's speed is 6.25 m/s and A takes 16 s. A beats C by s.
Answer: A) 8 s
A beats B by 20 m in a 100 m race, and B beats C by 4 seconds in a 100 m race. B runs at 5 m/s. By how many seconds does A beat C in a 100 m race?
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