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P and Q start from A and B respectively with uniform velocities. P is headed towards B and Q towards A and both cities are 600 km apart. P rests whenever Q is on the move and Q rest whenever P is on the move. The speed of P and Q is 25 km/h and 30 km/ h respectively. If P starts first and reaches B in 36 hours, then find the least time that Q would take to each his destination after P makes a start.

A

20h

B

36h

C

44h

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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