59. Rajdhani Express covers 504 km in 4 hours 30 minutes. What is the speed of the train ? (B) 112km/hr (C) 126km/hr (D) 140km/hr (A) 100 km/hr
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distance = 504 km
time= 4 hours 30 minutes
= 4.5 hours
speed=distance/time
=504/4.5
=112km/hr
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