Solve the problem.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? Give your answer rounded to one decimal place, if necessary.
A. 5.5 hr
B. 5.8 hr
C. 5.7 hr
D. 11.5 hr
Answer: C
Mathematics
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B. 
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D. 
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500 mm
A. < B. > C. =
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