Question

Two trains leave a city at 1 pm. One train goes north at a constant rate of 75 mph. The other goes south of at a constant rate of 63 mph. At what time will the trains be 621 mile apart.

A.) 4:30 P.M.

B.) 5:30 P.M.

C.) 6:30 P.M.

D.) 7:30 P.M.

Answer 1

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Answer 2

4:30pm is the time when train are at 621 distance respectively.after 3.5 hours 75*3.5+63*3.5=621