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Marcus painted 1/3 of his bedroom in 4/5 of an hour. at this rate how long will it take him to paint his entire room

User Aelor
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Answer:

So it took him 4/5 of an hour to paint 1/3

that means there is still 2/3 to go

so that means that he will have two times that time to paint the rest of the room

4/5 = ?

1/3 2/3

using cross multiplication

(4/5)(2/3) = (1/3) (?)

8/15 = 1/3 ?

divide both sides by 1/3

so that will be 8/5

that means it will take 8/5 of an hour to complete the rest

or 12/5 total to do entire room

Hope this helps ;)

Explanation:

User Scott Sauyet
by
8.2k points
5 votes
It will take him 2 2/5 hours
User Pixelistik
by
8.0k points

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