There distance between the two stations is 1200 km.A train covers first half a journey at a speed 60km/h and the remaining half of the journey at a speed of 50km/h.how much time taken dor the whole journey?also find the average speed of the train?
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total distance= 1200
first half of the distance,= 1200÷2=600
speed during first half = 60km/hr
time= distance/speed
= 600/60=10hr.
speed during second half = 50km/hr
distance to cover=600km
time= 600/50
=12hr.
average speed= total distance/ total time
1200/22
54.54km/hr.=====>average speed
22 sec. ========> total time
first half of the distance,= 1200÷2=600
speed during first half = 60km/hr
time= distance/speed
= 600/60=10hr.
speed during second half = 50km/hr
distance to cover=600km
time= 600/50
=12hr.
average speed= total distance/ total time
1200/22
54.54km/hr.=====>average speed
22 sec. ========> total time
bprasad7:
thanks bro
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