SMaRtguy381983 SMaRtguy381983

27-03-2015
Mathematics

Answered

It takes 60 minutes for 4 people to paint 8 walls.

How many minutes does it take 6 people to paint 9 walls?

Answer :

27-03-2015

Each person paints 2 walls in 60 minutes ( 8:4=2) that means 1 wall takes 30 minutes for each person( 60:2=30)

For 9 walls , each person paints 1.5 walls ( 9:6= 1.5) that mean 1.5 * 30= 45 minutes

So 6 people need 45 minutes to paint 9 walls

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