# Answer to Question #4622 in Algebra for jacqui

Question #4622

workpiece turned on lathe of a feed rate of 0.2mm/rev and cut takes 8mins to complete. If feed rate increases to 0.5mm/rev how long will it take to complete the cut?

Expert's answer

Speed(mm/rev) time(min) = Cut, as the length& of cut is constant, Speed1 time1 =

Speed2 time2, time2 = speed1 time1/speed2 = 0.2 8/0.5 = 3.2 min

Hence X = 0.2 8/0.5 = 3.2 min

Speed2 time2, time2 = speed1 time1/speed2 = 0.2 8/0.5 = 3.2 min

Hence X = 0.2 8/0.5 = 3.2 min

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