Question

The following statements are made about some number: a) It is prime b) It is odd number and less than 5 c) It is an even number d) It is 3 Find this number if two of these statements are true and the other two statements are false.

Answer 1

a) It is prime - 2, 3
b) It is odd number and less than 5 - 1, 3,
c) It is an even number - 2,4
d) It is 3

If a) and c) is true, then Number is 2. 2 is prime and 2 is even.
b) and c) is false.

Answer 2

If letters a and c are true, then # 2.2 is prime and 2 is even. letters b and c are false.