Trains Boats and Streams Practice Test 3 with solutions

Question : 26 of 40

Marks: +1, -0

A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km/hr, the time taken by it to cover the same distance will be:

Solution:

Distance covered by the train = 10 km
Time = 12 minutes

{12}/{60}

1/5

hrs
Time =

{\distance}/{\speed}

1/5

{10}/x

x = 50 kmph
Speed is decreased by 5 kmph
New speed of the train = 45 kmph
Time =

{10}/{45}

= 0.22 × 60 = 13.33
= 13 minutes 32 seconds

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