A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
230 m
240 m
260 m
270 m
Explanation:
| Speed =$ \left(72 \times\dfrac{5}{18} \right) $m/sec= 20 m/sec. |
Time = 26 sec.
Let the length of the train be $ x $ metres.
| Then,$ \dfrac{x + 250}{26} $= 20 |
$\Rightarrow x $ + 250 = 520
$\Rightarrow x $ = 270.