A train travelling 360 km at uniform speed if the speed of train had been 5 km per hour more it would have taken hours less for the same journey. Find the original speed of the train?
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Let the speed be x km/hr
Distance= 360km
We know that Distance=Speed * Time OR Time = Distance/Speed
Let time taken at uniform speed be T1 and time taken after increasing speed be T2
T1 = 360 km (distance) / x km per hour(uniform speed)
T2 =360 km (distance) / x+5 km per hour(increased speed)
ACCORDING TO THE QUESTION :
T1 -T2=1 {BECAUSE T1 - 1 = T2 which is given}
Now see the attachment
So the answer is 40km per hour.
Distance= 360km
We know that Distance=Speed * Time OR Time = Distance/Speed
Let time taken at uniform speed be T1 and time taken after increasing speed be T2
T1 = 360 km (distance) / x km per hour(uniform speed)
T2 =360 km (distance) / x+5 km per hour(increased speed)
ACCORDING TO THE QUESTION :
T1 -T2=1 {BECAUSE T1 - 1 = T2 which is given}
Now see the attachment
So the answer is 40km per hour.
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