Question

Two trains ‘G’ and ‘H’ of lengths 360 metres and 540 metres respectively are approaching each other. Their speed ratio is 2:3. They cross each other in 36 seconds. Find the average of their speeds in km/h.

A 24 km/h
B 32 km/h
C 42 km/h
D 45 km/h
E 54 km/h
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