41. Car A, moving in a straight line at a constant speed of 20. meters per second, is initially 200 meters behind car B, moving in the same straight line at a constant speed of 15 meters per second. how far must car a travel from this initial position before it catches up with car B?
(1) 200m
(2) 400m
(3) 800m
(4) 1000m
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