Mark M. answered 12/19/19
Tutor
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(278)
Mathematics Teacher - NCLB Highly Qualified
3 walls require 460 people minutes
6 walls require 920 people minutes (6 is twice 3)
4 people working 230 minutes can paint 6 walls. (902 divided by 4 is 230)
David W.
Typo. (920 divided by 4 is 230)12/19/19