# If I find a number with 2 informations will the third works? [closed]

If the question they tell me to find a number and they give me 3 informations/conditions: A B C If I found this number from A and B will it work in C?

## closed as unclear what you're asking by Hans Lundmark, gt6989b, Leucippus, Eevee Trainer, John OmielanApr 2 at 20:38

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• This is very vague. Depends on the question. One might expect that if (A) and (B) are enough to give a specific value, but it is possible the question means to give you conditions that contradict, and no value is appropriate. – Thomas Andrews Apr 2 at 18:22
• I mean the second thing – Selim Jean Ellieh Apr 2 at 18:38

That totally depends on the conditions. Take for example the following set of conditions:

$$A$$: 'the number must be odd'

$$B$$: 'the number must be a prime number'

$$C$$: 'the number must be smaller than 4'

Then from $$A$$ and $$B$$ you can deduce all possible prime numbers $$>2$$, however, from statements $$A$$, $$B$$ and $$C$$ the only possible number is $$3$$, so in this case not everything derived from $$A$$ and $$B$$ gives a solution to $$A,B$$ and $$C$$.

If you can derive the statement $$C$$ from the statements $$A$$ and $$B$$, then an answer to $$A$$ and $$B$$ directly define an answer to $$C$$. Take for example the following set of conditions:

$$A$$: 'the number must be odd'

$$B$$: 'the number must be a prime number'

$$C$$: 'the number must be greater than $$2$$'

Then $$C$$ automatically follows from $$A$$ and $$B$$.