A train of length 750 m travelling at a speed of 90 kmph crosses a Tunnel in 59 seconds. Find the length of the Tunnel. (In metres)

Correct option is C

Speed = 90 km/hr
Convert to m/sec
= 90 × 5/18
= 25 m/s

Time = 59 sec
Total distance covered
= 25 × 59
= 1475 m

Train length = 750 m
Tunnel length
= 1475 − 750
= 725 m