a train can finish a journey in 10 hours travelling at a speed of 56 km .if another faster train is to cover the same journey in 8 hours , what should be the speed of the new train?
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Given,
The first train traveling time t₁ = 10h.
Traveling speed s₁ = 56km/h.
The second train traveling time t₂ = 8h
To Find,
The speed of the second train.
Solution,
Given that,
The time is taken by the first train to travel t₁ = 10h.
Traveling speed of first train s₁ = 56km/h
Therefore,
Distance traveled by first train D = speed *time
D = 56*10
D = 560km
The time is taken by second train t₂ = 8h
Distance D = 560km
Therefore,
The speed s₂= D / t₂
s₂ = 560 / 8
s₂ = 70km/h
70km/h is the speed of the second train.
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