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Mathematics, 17.07.2019 02:30, lucylooe11
One bricklayer can build a wall in 6 hours. another bricklayer could build the same wall in 4 hours. if they work together, how long will it take to build the wall? a5 hours b2.4 hours c10 hours d2 hours
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Answers: 1
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One bricklayer can build a wall in 6 hours. another bricklayer could build the same wall in 4 hours....
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