SOLUTION: a train takes 2 hours to complete a journey at a speed of 45km per hour.find the time taken by the train to complete this journey at speed of 60km per hour....thank you
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Question 821789: a train takes 2 hours to complete a journey at a speed of 45km per hour.find the time taken by the train to complete this journey at speed of 60km per hour....thank you Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! two ways
first way
2*45=90
90/60=1.5 hours
2*45=60x
x=1.5 hours
second way
45/60=3/4
3/4*2=1.5 hours
45/60=x/2
60x=45*2
x=1.5
