In a 1 km race, A beats B by 40 m or by 8 seconds. How long does A take to run the race?
A. 196 seconds
B. 200 seconds
C. 192 seconds
D. 185 seconds
A. 196 seconds
B. 200 seconds
C. 192 seconds
D. 185 seconds
Best answer
Answer: C. 192 seconds
Answer: (C) 192 seconds
B runs the last 40 m in 8 s, so B's speed = 5 m/s and B's time = 1000 ÷ 5 = 200 s.
A finishes 8 s earlier: 192 seconds. Trap: 200 seconds is B's time.
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