Question

A 150 m long train is moving to North at a speed of 10 m/s. A parrot flying towards South with a speed of 5 m/s crosses the train. The time taken by the parrot to cross the train would be:
1) 30s
2) 15s
3) 8s
4) 10 s

Answer 1

Answer:

4)10s

Explanation:

to total distance=150m

speed of train=10M/S

speed of parrotBhai=5m/s

let parrot stay at a place and add his speed to the train speed.

so total speed of crossing=15m/s

S=D/T

D=T×S

T=D/S

Time=150/15

=10s (ANSWER)