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A train 300 m long is running with a speed of 54 km/hr. In what time it cross a telephone pole ?
Answer & Solution
Correct Answer:
Option
A
Here length of pole is considered 0 metre
Time will be taken by train to cross the poll :
$$\eqalign{ & = \frac{{{\text{300 m}}}}{{54 \times \frac{5}{{18}}{\text{ m/s}}}} \cr & = \frac{{300}}{{15}} \cr & = 20 \cr} $$
Required time = 20 seconds
Time will be taken by train to cross the poll :
$$\eqalign{ & = \frac{{{\text{300 m}}}}{{54 \times \frac{5}{{18}}{\text{ m/s}}}} \cr & = \frac{{300}}{{15}} \cr & = 20 \cr} $$
Required time = 20 seconds
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