Correct option is A
Given
Length of train = 1386 m
Length of platform = 564 m
Speed of train = 18 km/hr
Formula Used
Total Distance = Length of Train + Length of Platform
Time =
Solution
Speed = 18 × m/s
Distance = 1386 + 564 = 1950 m
Time =
Time = 390 seconds
Final Answer
So the correct answer is (a)