brain teaser

A teaser a day keeps Alzheimer’s away!

A, B and C are integer numbers. The following statements are true:

A + B + C=13
B + A=1
B – A=1

Which of the following statements are true?
1. C=12;
2. A=0;
3. B=3;

See the answer

Answer: #1 (C=12) and and #2 (A=0) are correct.
From the statements B + A=1 and B – A=1 we can immediately conclude that A=0, and B=1. Therefore, C=12.

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