SSC CGL 2023 PYQ — Question 66

The correct answer is Option 1 i.e 60 s.

Length of train = 900 m

Length of platform = 900 m

Speed of train = 108 km/h

Time = $distance\over speed$

According to the given question,

Speed in m/sec = 108 km/hr $\times {5\over 18}$

⇒ 108 × 5/18 = 30 m/sec

Total distance = 900 + 900 = 1800 m

Time taken = $1800 \over 30$ = 60 sec

Hence the time taken by train to cross the platform is 60 sec.