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I have a task which takes 5 days to complete. Can I say it like

The effort required to complete the task is 5 days.

Is this statement grammatically correct?

How I can expresss the same thing in a formal way(s)?
Comments  
MaanuMpThe effort required to complete the task is 5 days.
Grammatically, the sentence is not wrong. But logically, it makes the person reading it ponder for a second. Effort - is a collective noun understood to mean the time, energy, hard work , and belief a person or a group of individuals put into something they trys to accomplish. We can say: 'It required the collective effort of the team to make the victory possible'. So it would make more sense with "The time required to complete the task is 5 days.", which is the same as "It will take 5 days to complete the task".
Thank you dimsumexpress