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Mathematics, 27.12.2019 19:31 LindaCat78

Brandon can paint a fence in 12 hours and elaine can paint the same fence in 11 hours. how long will they take to paint the fence if they work together?
a) 5 13/24 hr
b) 5 ¾ hr
c) 11 ½ hr
d) 5 17/23 hr

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