Question

Two trains ‘T8’ and ‘U8’ of lengths 600 metres and 300 metres respectively are travelling towards each other. Ratio of speed of ‘T8’ to ‘U8’ is 3:2. If the trains take 36 seconds to cross each other from the time they meet, then find the average of speeds (in km/h) of trains ‘T8’ and ‘U8’.

A 36 km/h
B 40 km/h
C 45 km/h
D 54 km/h
E 60 km/h
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