TASK DEFINITION: In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
PROBLEM: Problem: two trains of equal length , running with the speeds of 60 and 40 kmph , take 36 seconds to cross each other while they are running in the same direction . what time will they take to cross each other if they are running in opposite directions ?
Options: a ) 10 sec , b ) 16 sec , c ) 19 sec , d ) 7.2 sec , e ) 13 sec

SOLUTION: d

PROBLEM: Problem: a 180 meter long train crosses a man standing on the platform in 9 sec . what is the speed of the train ?
Options: a ) 72 , b ) 108 , c ) 1266 , d ) 188 , e ) 211

SOLUTION: a

PROBLEM: Problem: two pipes a and b can fill a tank in 30 and 60 minutes respectively . if both the pipes are used together , then how long will it take to fill the tank ?
Options: a ) 10 , b ) 20 , c ) 30 , d ) 24 , e ) 25

SOLUTION:
b