Interview for a CEO

A Large Australian Company advertised for a CEO, but only had one applicant,
whom they weren't enthused about, and so decided to give him a test
Irish Math Test
A Irishman wants a job, but the company won't hire him until he passes a little math test.
Here is your first question, the Chairman said. "Without using numbers, represent the number 9."
"Without numbers?" The Irishman says? "Dat is easy." And proceeds to draw three trees.
"What's this?" the Chairman asks.


"Have you ain't got no brain? Tree and tree plus tree makes 9" says the Irishman.

"Fair enough," says the Chairman. "Here's your second question. Use the
same rules, but this time the number is 99."

The Irishman stares into space for a while, then picks up the picture that
he has just drawn and makes a smudge on each tree... "Ere you go."

The boss scratches his head and says, "How on earth do you get that to represent 99?"
"Each of da trees is dirty now. So, it's dirty tree, and dirty tree, plus dirty tree. Dat makes 99."
The Chairman is getting worried that he's going to actually have to hire this Irishman, so he says, "All right, last question. Same rules again, but represent the number 100."

The Chairman looks at the attempt. "You must be nuts if you think that represents a hundred!"

The Irishman leans forward and points to the marks at the base of each tree and whispers, "A little dog come along and poop by each tree.
So now you got dirty tree and a turd, dirty tree and a turd, and dirty tree
and a turd, which makes ONE HUNDRED!"

That Irishman is now head of Qantas