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Hfruit
28.01.2020 •
Mathematics
Edie can paint a wall in 3 hours. dan can paint the same wall in 6 hours. if they work together, how many hours will it take edie and dan to paint the wall?
a.
1 hour
b.
1.5 hours
c.
2 hours
d.
4.5 hours
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Ответ:
Dan can paint 1/6 wall in an hour
2/6 + 1/6 = 1/2
Together, they can paint 1/2 wall in an hour
1/2 x 2 = 2
Therefore they would paint the whole wall in 2 hours, so the answer's C.
Ответ:
this seams to be a multiple choice question, state the options below.