The schedule for the air-quality examination is fully determined if which one of the following is true?

tomgbean on December 31, 2019

D vs. E

I could not eliminate D or E. Both Scenarios only allow for one configuration. D: 3-2-7-5 1-6-4-8 E: 6-3-7-5 2-8-4-1 How were you able to come up with a a different scenario for D?

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Irina on December 31, 2019


another possible order is:

3 - 6 -7 -5
1 - 4 -2 -8