Question

A train, 260 meters long travelling at a speed of 90 kmph crosses a bridge in 60 seconds. What is the length of the bridge?

• A. 1040 m
• B. 1100 m
• C. 1225 m
• D. 1240 m
• E. None of these

Answer 1

The correct option is D

1240 m

Let the length of the bridge be `x' m.

Speed of train = 90 kmph = 25 m/sec

Now, Speed = $\frac{Distance}{Time}$

$\Rightarrow$ 25 = $\frac{260+x}{60}$

$\Rightarrow$ 1500 = 260 + x

$\Rightarrow$ x = 1240 m