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Each worker takes c hours to produce b pairs of shoes ==> hence, each worker produces b/c shoes per hour (e.g. 3 hours to produce 2 pairs of shoes = 2/3 shoes per hr) a workers produce ab/c shoes per hour = 24ab/c shoes per day 1000 shoes will take 1000 / (24ab/c) days = 1000c / 24ab = 125c / 3ab

by El Nino

Mon Nov 02, 2009 12:29 pm
Forum: Problem Solving
Topic: Complex Work Rate
Replies: 3
Views: 1886

There are values of m and z fulfilling both conditions, some of which result in m+z>0, and others which result in m+z<0. E.g. m=-2, z=-1 --> m+z<0 m=2, z=-1 --> m+z<0 Similarly, using the graph method suggested, there are values m+z can be positive or negative. So, I think the statements are insuffi...

by El Nino

Tue Sep 22, 2009 8:14 am
Forum: Data Sufficiency
Topic: Is m+z > 0?
Replies: 22
Views: 14232