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Zigmanuir [339]
3 years ago
9

a contractor finds that crew A takes 5 1/2 hours to construct a retaining wall and crew B can do the same job in 8 1/2 hours. if

crew A and crew B work together how long will it take them to construct the retaining wall
Mathematics
1 answer:
o-na [289]3 years ago
4 0

Answer:

14hrs

Step-by-step explanation:

5 1/2+8 1/2

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