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a plumber can do a job in 5 hours, and his apprentice can do the same job in 8 hours. What part of the job is left if they start the job and work together for 2 hours.
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a plumber can do a job in 5 hours, and his apprentice can do the same job in 8 hours. What part of the job is left if they start the job and work together for 2 hours.

User Guildenstern
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1 Answer

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After they have finished they need to let the work dry before water passes through
User Kumar Manglam
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