If one subzone in each of the zones is designated for industrial use, then which one of the following is allowed?

Emily on May 1, 2018

A versus D

What's wrong with answer D? Could you not have 1-I, 2-IRR, and 3-IRR?

3 Replies

Adam on March 26, 2019

I have the same question

Karen on July 10, 2020

Same question. As both above. Hasn’t been answered yet

Victoria on July 16, 2020

Hi all,

Sorry for the delayed response. Hopefully I can help to clear things up a bit!

Answer choice (D) is incorrect because the stimulus tells us that "by city regulation, a total of no more than three sub zones can be designated for each of the three uses." Therefore, there can only be three R sub zones.

We know that any zone which has a sub zone that is designated for housing cannot have an I sub zone and there can be no R sub zones in Z1. Therefore, we can have a maximum of three R sub zones split between Z2 and Z3.

Option 1

Z1: I
Z2: IRRR
Z3: I

This doesn't work as we cannot have three R sub zones in a zone which has an I sub zone.

Therefore, there are two iterations of Option 2

Z1: I
Z2: IRR
Z3: IR

OR

Z1: I
Z2: IR
Z3: IRR

We can see above that it is possible that there are more R sub zones in Z2 than in Z3.

Hope this is helpful! Please let us know if you have any further questions.