Answer:
Step-by-step explanation:
10 people : 46 mins : 3 walls
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Find the number of people needed to paint 6 walls
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(10 x 2) people : 46 mins : (3 x 2) walls
20 people : 46 mins : 6 walls
⇒ It takes 20 people 46 mins to paint 6 walls.
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Find amount of time to paint all 6 wall by 1 person
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(20 ÷ 20) people : (46 x 20) mins : 6 walls
1 person : 920 mins : 6 walls
⇒It takes 1 person 920 mins to paint 6 walls
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Find the amount of time to paint 6 walls by 4 people
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(1x 4) person : (920 ÷ 4) mins : 6 walls
4 person : 230 mins : 6 walls
⇒ It takes 4 person 230 mins to paint 6 walls
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Answer: It takes 4 person 230 mins to paint 6 walls
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