Nayeli is a 
 75
 7575 page manuscript. Filémon is a 
 40
 4040 page manuscript.
 Since proofreading is faster, Nayeli completes 
 11
 1111 pages an hour, but Filémon only completes 
 4
 44 pages an hour.
 When Nayeli and Filémon have the same number of pages left, how many pages will that be