Answer:
1 day
Explanation:
4 people = 2 days
→ Work out how long 1 person takes
( ÷ 4 ) ( × 4 )
1 person = 8 days
→ Work out how long 8 people can do it
( × 8 ) ( ÷ 8 )
8 people = 1 day
if it takes 4 people for 2 days
4+4= 8
so it would only take 8 people for 1 day
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