The distance between P and Q is 720 km. A train leaves P at 6 am and runs at a speed of 20 m/s. The train stops on the way for 1 hour 30 minutes. At what time train will reach at Q?
Answer & explanation
Correct answer: option 4
Given :-
Distance = 720 km
Speed = 20 m/sec
20 m/sec = 20 × \(\frac{18}{5}\) = 72 km/h
Time taken = \(\frac{Distance}{Speed}\)
= \(\frac{720}{72}\) = 10 hours
Trains start at 6:00 am . So , train reach Q at = 6:00 am + 10 hours + 1 hour 30 minutes
= 5:30 pm