CUET Preparation Today
A train of length 540 m crosses a bridge of length 390 m in 30 seconds. What is the speed of the train (in km/h)? |
120 119 111.6 125 |
111.6 |
Distance = Speed × Time (540 + 390) = S × 30 ⇒ S = \(\frac{930}{30}\) = 31 m/sec To convert km/h into m/sec . X m/sec × \(\frac{18}{5}\) = Y km/h 31 m/sec × \(\frac{18}{5}\) = 111.6 km/h |
