It takes 60 minutes for 7 people to paint 5 walls. How many minutes does it take 10 people to paint 10 walls?
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dont even say that the wall is already painted.
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7 men paint 5 walls in 60 minutes
7 men paint 1 wall in (60/5)= 12 minutes
7 men paint 10 walls in (12*10)= 120 minutes
1 man paints 10 walls in (120*7)=840 minutes
10 men paint 10 walls in (840/10) minutes
= 84 minutes
(Ans): 84 minutes.
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