1)A train 250 m long is running at a speed of 50kmph. How long it will take to cross the pole.
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Explanation:
Speed = 50 kmph
Train l = Distance
So,
Kmph to mps
50 × 5/18
125 /9 mps.
Time = D/S
=> 250 / 125 /9
=> 250 × 9 / 125
=> 9 × 2
=> 18 sec.
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