alleryIn a 1000 m race A runs at 10 m/s and wins by 100 m. How fast does B run?
A8.5 m/s
B9 m/s
C9.5 m/s
D8 m/s
Answer & Solution
Correct answer: B. 9 m/s
A takes 100 s; B covers 900 m in that time, which is 9 m/s.
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