the ratio between the speeds of two trains is 7:8. if the second train runs 600 km in 8 hours then the speed of the first train is
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Now, it is given that the speed of two trains are in ratio 7:8. So, let the common ratio be x.
This implies, speed of first train = 7x and that of the second train is 8x............(1)
now, speed = distance/time
According to second part of question,
speed of second train = distance/time
= 600/8 km/hr
= 75 KMPH
using equation 1,
75= 8x
=> x= 75/8 = 9.375
=> speed of first train = 7x = 7(9.375)
= 65.625 KMPH
This implies, speed of first train = 7x and that of the second train is 8x............(1)
now, speed = distance/time
According to second part of question,
speed of second train = distance/time
= 600/8 km/hr
= 75 KMPH
using equation 1,
75= 8x
=> x= 75/8 = 9.375
=> speed of first train = 7x = 7(9.375)
= 65.625 KMPH
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