SOLUTION: Mower A can mow the village park in 3 hours and Mower B can mow the park in 2 hours. At 7 am Mower A began to mow the park and was joined by Mower B at 7:30 am. At what time was th

Question 1011170: Mower A can mow the village park in 3 hours and Mower B can mow the park in 2 hours. At 7 am Mower A began to mow the park and was joined by Mower B at 7:30 am. At what time was the job completed?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
mower A does 1/3 of the village park every hour.
mower B does 1/2
x=number of hours for mower a
x/3 + (x-0.5/2=1, where 1 is the whole park
2x+3x-1.5=6
5x=7.5
x=1.5 hours
done at 8:30 am
1.5/3 for mower a (50%)
1/2 for mower B is (50%)

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