### Brain Teasers

# A Number

There are 20 players in Maxvu's sports team, numbering from 1 to 20. What is Maxvu's number? Of the choices below, only one is correct.

A. an odd number

B. an even number

C. a prime number

D. a composite number

A. an odd number

B. an even number

C. a prime number

D. a composite number

### Answer

It's easily seen that one of A and B must be correct, as a number is either odd or even. This means that neither C nor D is correct. If a number is neither prime nor composite, it can only be 1, so choice A is correct.Hide Answer Show Answer

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