Two stations P and Q are 42 km apart. A person starts from P, walks at 4 km/h towards Q and meets another person coming from Q towards 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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Step-by-step explanation:
Let s = the speed of person B
Since they are walking towards each other, their relative speed is 4 + s.
At this relative speed, they cover a distance of 42 km in 6 hrs.
Therefore 4 + s = 42/6 = 7
Thus s = 7 - 4 = 3 km/h
Answered by
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Answer: A person starts from P at 4km/hr towards Q and Q starts with some rate towards P. Now they meet each other after 6 hours. Therefore the distance covered by both of them is equal to 42 km. Let the rate at which the other person walks towards P be x km/hr.
Step-by-step explanation:
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