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Logic
Small, Medium or Large? |
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Al, Beth, and Cynthia got sodas to drink in the
movies. "We want a small, a medium, and a large,
and I don't get the large," Beth told the kid
at the counter. "I thought you said you were
getting large," said the boy who wanted the
medium-size drink. Who wanted what size drink?
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Al got medium, Beth got small, and Cynthia got large.
You know that Beth didn't want large, so she could
have gotten small or medium. But you know that someone
else wanted medium, so Beth had to get the small
drink. You also know who got the medium-sized drink
— it had to be Al, because he was the only
boy in the group. That means the large drink was
for Cynthia.
Source: Lowell House, Brain
Games, p. 49
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