Interview Maths Puzzle Numerical Ability

A 200 meter train crosses another train travelling oppsite in direction 15 sec the length of the train is 300 meter and speed of both the trains are equal find the speed of the train

a: 50 kmph
b: 36 kmph
c: 64 kmph
d: 60 kmph

Read Solution (Total 1)

15=(200+300)/(s1+s2)
s1=s2
15=500/2s1
s1=500/30m/s
s1=(500/30)*(18/5)
s1=60km/hr
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