When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?
(A) 5m/s, 1m/s
(B) 3m/s, 3m/s
(C) 6m/s, 1m/s
(D) 4m/s, 2m/s
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