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October 1992 LSAT - Section 4 - Question 3

If cage Z contains exactly twice as many lizards as cage Y, which one of the following can be true?

fsiapno January 5, 2024

please explain

Hello, Please explain this question. I don't get the question and how to get the right answer.

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Emil-Kunkin January 9, 2024

If Z has twice as many lizards as Y, we know that z has two and y has one, so we know the following

Y: L S
Z: L L S

There are three more snakes to distribute between y and z, and we know that since the numbers must be even, Z must have either one more or three more, so there are only two possibilities

Y: L S
Z: L L S S S

Or

Y: L S S S
Z: L L S S