Question

2 men start from 2 points P and Q, 8 km apart and walk towards each other. They meet in 80 minutes. If they walk in the same direction, they meet in 2 hours. Find their speed.

Answer 1

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Answer 2

Answer:

Speed is$5km/h\ and \ 1 km/h$

Step-by-step explanation:

Let the speed of two men are x and y respectively so if they walk in the opposite direction

$\frac{80}{60}=\frac{8}{x+y}$

$x+y=6.........(1)$

Now if they walk in the same direction

$2=\frac{8}{x-y}$

$x-y=4.........(2)$

By adding (1) and (2) we get

$2x=10$

$x=5$

Hence $y=1$

So speed is 5km/h and 1 km/h