In an 800 m race, A finishes in 2 minutes 40 seconds and beats B by 160 m. What is B’s time for the course?
Correct answer B. 3 min 20 s
Explanation
When A finishes in 160 s, B has run 640 m, so B's speed = 4 m/s. B's time = 800 / 4 = 200 s = 3 min 20 s.
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