Question 3
John writes a 2-digit number and asks Peter to guess it.
Peter: “Is it divisible by 9 and 12?”
John: “It is divisible by 9 but not by 12.”
Peter: “Is it less than 40?”
John: “Yes.”
Peter: “Is it odd?”
John: “No, it is even.”
What number did John write?
Peter: “Is it divisible by 9 and 12?”
John: “It is divisible by 9 but not by 12.”
Peter: “Is it less than 40?”
John: “Yes.”
Peter: “Is it odd?”
John: “No, it is even.”
What number did John write?