Asked by Diane
Suzy can paint a house in 4 hours. Peter can paint the same house in 6 hours. How long will it take to paint the house if they painted it together?
Answers
Answered by
DrBob222
I solve these by the following:
1 house/4 hours = 0.25 house/hr.
1 house/6 hours = 0.157 house/hr.
If they paint together they will have those combined or
0.25 house/hr + 0.167 house/hr = 0.417 house/hour.
or 1/0.417 hours/house = 2.4 hours.
1 house/4 hours = 0.25 house/hr.
1 house/6 hours = 0.157 house/hr.
If they paint together they will have those combined or
0.25 house/hr + 0.167 house/hr = 0.417 house/hour.
or 1/0.417 hours/house = 2.4 hours.
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