RRB NTPC Mains or Stage 2 Model Paper 7 with solutions

Question : 6 of 120

Marks: +1, -0

A 180 -metre long train crosses another 270-metre long train running in the opposite direction in 10.8 seconds. If the speed of the first train is 60 kmph, what is the speed of the second train in kmph?

80
90
150
Cannot be determined

Validate

Solution:

(b) Relative speed of two trains

={180+ 270}/ 10.8 m/ s= 4500/108 m /s

=4500/108×18/5{ km}/h=150{km}/{hr}

Speed of second train = 150 – 60 = 90 km/h.

Go to Question:

Prev Question

Next Question