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Mathematics, 22.02.2020 03:16 veronicamixon1970

Robot A can unpack 45 boxes per hour, and Robot B can unpack 40 boxes per hour. How long will it take both robots working together to unpack 1,275 boxes?

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Robot A can unpack 45 boxes per hour, and Robot B can unpack 40 boxes per hour. How long will it tak...
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