In a circular race of 1600 m, A and B start from the same point and at the same time with speeds of 27 km/h and 45 km/h, respectively. After how long will they meet again for the first time on the track when they are running in the same direction?

Length of the circular track = 1600 m

Speed of A = 27 km/h

Speed of B = 45 km/h

if A's speed is x km/h and B's speed is y km/h.

Relative speed for same direction = x - y km/h

Time = $$\frac{ \text { Distance}}{\text{ Speed}}$$ 

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