Question: A and B start simultaneously at one end of a swimming pool whose length is 50 m. The swimming race is a race of

A and B start simultaneously at one end of a swimming pool whose length is 50 m. The swimming race is a race of 1000 m. If A beats B and meets him, 17 times during the course and A's speed is 5 m/s, then the speed of B could be: (a) 1 m/s (c) 4 m/s (b) 3 m/s (d) 6 m/s

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