Respuesta :
Answer: Contractor's crew can frame 54 houses in 18 weeks.
Explanation:-
Time taken to complete 3 houses=1 weeks
⇒Time taken to complete 1 house=[tex]\frac{1}{3}[/tex] week
⇒Time taken to complete 54 houses =[tex]\frac{54}{3}[/tex] weeks
=18 weeks
Therefore, contractor's crew can frame 54 houses in 18 weeks.