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Time/Work Problems
mark can paint the fence in 40 minutes and manny can paint the fence in 30 minutes together how long will it take to paint the fence
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mark does 1/40 of the job and manny does 1/30 of the job. Together:1/40+1/30=7/120 of the job in a minutes,time to do the entire job is 120/7=17mins approx
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