Mathematics, 21.04.2021 19:10 jasbutt015p2pqp8
Jerry can lay a tile floor in 3 hours, and his assistant can do the same job in 4 hours. If Jerry starts the job and his assistant joins him 1 hour later, then how long will it take to lay the floor?
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Jerry can lay a tile floor in 3 hours, and his assistant can do the same job in 4 hours. If Jerry st...
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