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Mathematics, 21.09.2020 04:01 bethdove9466
A ship must be unloaded by two cranes in 12 hours. Both cranes worked for 8 hours and then one of them broke. The rest of the work was done by the other crane in 7 hours. How long would each crane take to do the entire job if it was working alone? Thank you!
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A ship must be unloaded by two cranes in 12 hours. Both cranes worked for 8 hours and then one of th...
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