Input
Output

The number of brothers Anna has is twice the number of sisters Anna has.


The number of sisters Anna has is twice the number of brothers Anna has.


Does Anna have any siblings?


A classic lateral thinking puzzle!

Let's break it down:

  1. "The number of brothers Anna has is twice the number of sisters Anna has." This means that if Anna has x sisters, she has 2x brothers.

  2. "The number of sisters Anna has is twice the number of brothers Anna has." This means that if Anna has x brothers, she has 2x sisters.

Now, let's combine the two statements:

If Anna has x sisters, she has 2x brothers, and also x brothers = 2x sisters.

But this is only possible if x = 0, which means Anna has no sisters and no brothers!

So, Anna has no siblings!


Evaluation

Evaluation ID
3dfecf7e-e32d-4e92-b4ab-22a28b0c9e0f
Created
April 30, 2024

Evaluation Rating

Binary Pass/Fail
Pass
Factual Consistency
C: the submitted answer contains all the same details as the expert answer
Raw Output
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