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weeeeeb [17]
3 years ago
10

PLEASE HELP URGENT!!!!!!

Mathematics
1 answer:
arlik [135]3 years ago
6 0

9514 1404 393

Answer:

  12/11 = 1 1/11 hours

Step-by-step explanation:

The total rate is the sum of the individual rates in rooms per hour.

Tom can paint 1/4 room per hour.

Sam and Victor can each paint 1/3 room per hour.

Their total rate is ...

  1/4 +1/3 +1/3 = 11/12 . . . rooms per hour

The rate in "hours per room" is the inverse of this.

It takes them 12/11 = 1 1/11 hours to paint one room.

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