USE GOAL PROGRAMMING, this is not a gravity point problem. The problem never asks for gravity point!! I will give thumbs down for gravity point answers.

We are attempting to determine the best location for a new robot which selects and conveys products in a warehouse. The existing products are located at the following coordinates: (1,7,4), (5,9,10), (6,25,5) and (10,20,15).

Using GOAL PROGRAMMING, find the best location for the robot. Book: David R. Anderson, Dennis J. Sweeney, et al., An Introduction to Management Science - Quantitative Approaches to Decision Making (2015) Chapter 14

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