downstream in 5 hours. Find the speed it
2. A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to
travel the same distance if its speed were 5 km/hr more. Find the original speed of the
INCERT EXEMPLAR
train.
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0
Answer:
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Answered by
0
Answer:
45
Step-by-step explanation:
let original speed is x km/hr
time=distance/speed
original time= 360/x
new time= 360/(x+5)
the time difference is 48 min i.e. 48/60 hr
so 360/x- 360/(x+5)=48/60
solving this:
x^2+5x-2250=0
now x=45 is true solution
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