Question

A train moving with uniform speed crosses a pole in 2 s and a 250 m long bridge in 7 s. Find the length of the train.

Options

• 150 m

• 120 m

• 100 m

• 80 m

Answer 1

100 m
Explanation:
Let the length of the train be L m.
According to the question,

`L/2=(L+250)/7`

⇒ 7L - 2L = 500

⇒ L = 100 m