Question

Speed of the stream is 15 km/h and speed of boat in still water is 24 km/h. A boat takes a total of 38 hours for travelling downstream from Point M to Point N and coming back to point Q which is midway of point M and N. What is the distance between M and N?

A 560 km
B 352 km
C 432 km
D 468 km
E None of these
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