It would take john 6 hours to paint a room by himself. It would take Tom 18 hours to paint the same room by himself. Of john and
tom work together, each at his individual rate, how many hours will it take the to paint the room.
2 answers:
Answer:
12 hrs
Step-by-step explanation:
6+18 =24
24/2 = 12
Answer: 4h 30min
Step-by-step explanation: Theoretically, if X= Number of hours required to paint the room,
X(1/6+1/18)=1
X(3/18+1/18)=1
X(4/18)=1
X(2/9)=1
2/9X=1
X=9/2h, or 4 1/2 h
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