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 the product of two numbers is 45276 and their h . c . f . is 22 , find their l . c . m . 
Options: a ) 2574 , b ) 2500 , c ) 2100 , d ) 2058 , e ) none of these
[EX A]: d

[EX Q]: Problem: a 60 cm long wire is to be cut into two pieces so that one piece will be 2 / 5 th of the other , how many centimeters will the shorter piece be ? 
Options: a ) a ) 73 , b ) b ) 20 , c ) c ) 83 , d ) d ) 17.1 , e ) e ) 52
[EX A]: d

[EX Q]: Problem: two pipes can fill a tank in 12 minutes and 15 minutes . an outlet pipe can empty the tank in 10 minutes . if all the pipes are opened when the tank is empty , then how many minutes will it take to fill the tank ? 
Options: a ) 20 , b ) 22 , c ) 24 , d ) 26 , e ) 28
[EX A]:
a