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Mathematics, 08.11.2020 23:40 saif27

company found that an experienced surveyor can survey a roadbed in 5 hours. An apprentice surveyor needs 9 hours to survey the same stretch of road. If the two work together, find how long it takes them to complete the job.

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company found that an experienced surveyor can survey a roadbed in 5 hours. An apprentice surveyor n...

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