Q.26 A train moves towards east at a speed of 30 km/ph and another train at a speed of 40 km/ph towards north. Find the velocity of their separation after 1 hour?
(A) 52 km/ph
(B) 72 km/ph
(C) 100 km/ph
(D) 50 km/ph
Q.27 A train 100 m long meets a man going in the opposite direction at 5 km/ph and passes him in 7.2 sec. The speed of the train is…….
(A) 50 km/ph
(B) 40 km/ph
(C) 55 km/ph
(D) 45 km/ph
Q.28 Two trains start at the same time, one from Liverpool to Manchester and the other from Manchester to Liverpool, and running steadily complete the journey in 42 min and 56 min respectively. How long are they moving from the moment of starting before they meet?
(A) 16
(B) 24
(C) 18
(D) 20
Q.29 A railway passenger counts the telegraph posts on the line as he passes them, if they are 50 m apart and the speed of the train is 48 km/ph, how many post will he pass in a minute?
(A) 20
(B) 17
(C) 16
(D) 18
Q.30 A train 100 m long, crosses a man approaching it at 40 km/ph from the opposite direction in 8 sec. Find the speed.
(A) 5km/ph
(B) 25 km/ph
(C) 45 km/ph
(D) 6 km/ph
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