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'.

[EX Q]: Problem: if a truck is traveling at a constant rate of 54 kilometers per hour , how many seconds will it take the truck to travel a distance of 600 meters ? ( 1 kilometer = 1000 meters )
Options: a ) 18 , b ) 24 , c ) 30 , d ) 36 , e ) 40
[EX A]: e

[EX Q]: Problem: a thief goes away with a santro car at a speed of 30 kmph . the theft has been discovered after half an hour and the owner sets off in a bike at 60 kmph when will the owner over take the thief from the start ?
Options: a ) 1 hours , b ) 2 hours , c ) 2 / 3 hours , d ) 1 / 3 hours , e ) 2 / 5 hours
[EX A]: a

[EX Q]: Problem: a man swims downstream 72 km and upstream 45 km taking 12 hours each time ; what is the speed of the current ?
Options: a ) 1.125 , b ) 1.128 , c ) 1.126 , d ) 1.123 , e ) 1.121
[EX A]:
a