Which one of the following foods CANNOT be added first?

Chloe on January 16, 2021

Answer Choice B

Why is C correct and B incorrect?

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Shunhe on January 30, 2021

Hi @Chloe-Shoemaker,

Thanks for the question! So remember, we’re trying to find the food that CANNOT be added first. Look at our last rule. It says that M comes before T or K, but not both. But if M is first, it comes before both. So M can never come first!

As for (B), the only rule about L is that if M is third, then L is last. But if M isn’t third, anything could go. So L could certainly be first.

Hope this helps! Feel free to ask any other questions that you might have.

Mark on February 16, 2021

I think chloe was referring to the contrapositive of Rule 2 resulting that L could not be added first

Joseph on April 8, 2021

If you look a rule two, it states that is Z1 --> L>O. The contrapositive to this is if O>L --> ~Z1. In either instance, L cannot be first. In the first scenario, Z must be first, and in the second scenario, O comes before L, so L cannot come first.