Answer:

I think this answer is correct

Explanation:

Let the speed of each bus = v km/h The distance between the nearest buses

plying on either car vT km.......(i)

For buses going from town A to B: Relative speed of bus in the direction of

motion of man = (v-20)

Buses plying in this direction go past the cyclist after every 18 min. Therefore,

separation between the buses = >

(v - 20)x(18/60)

From (i)--> (v-20)(18/60) = VT...... (2)

For buses coming from B to A: The relative velocity of bus with respect to

man = (v+ 20) Buses coming from town B past the cyclist after every 6 min,

(v + 20)x(6/60) = vT........(3)

Solving (2) and (3),we can use any method to solve equations, we get-->

V = 40 km/h

T = 2/30 h

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