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'.

Input: Consider Input: Problem: mahesh can do a piece of work in 35 days . he works at it for 20 days and then rajesh finished it in 30 days . how long will y take to complete the work ?
Options: a ) 45 , b ) 25 , c ) 37 , d ) 41 , e ) 70

Output: e

Input: Consider Input: Problem: stacy has a 81 page history paper due in 3 days . how many pages per day would she have to write to finish on time ?
Options: a ) 9 , b ) 27 , c ) 10 , d ) 8.5 , e ) 6

Output: b

Input: Consider Input: Problem: a man swims downstream 120 km and upstream 50 km taking 5 hours each time ; what is the speed of the current ?
Options: a ) 3 kmph , b ) 7 kmph , c ) 13 kmph , d ) 6.5 kmph , e ) 7 : 3 kmph
Output: b