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'.

[Q]: Problem: if 14 men do a work in 80 days , in how many days will 20 men do it ? 
Options: a ) 18 days , b ) 38 days , c ) 42 days , d ) 48 days , e ) 56 days
[A]: e


[Q]: Problem: on my sister ' s birthday , she was 132 cm in height , having grown 10 % since the year before . how tall was she the previous year ? 
Options: a ) 130 cm , b ) 126 cm , c ) 120 cm , d ) 116 cm , e ) 112 cm
[A]: c


[Q]: Problem: a train running at the speed of 90 km / hr crosses a pole in 10 seconds . find the length of the train . 
Options: a ) 150 , b ) 180 , c ) 250 , d ) 200 , e ) 225
[A]:
c