Question

Two stations P and Q are 42 km apart .A person starts from P ,walks at 4km/h towards Q and meets another person coming from Q toward P after 6 hours . Find the rate at which the second person is walking ,if both the persons start walking at the same time .
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Answer 1

Answer:

let a point C in between of P and Q

Then, distance AC = 4*6=24km

distance CQ = 42-24=18

Speed of second person ,

= 18/3=6

=6km/h