Who says the Irish are Dumb...

An Irishman finds a job he thinks he might like at The Employment Centre.
They check his credentials and think he might qualify for this one
He dresses up and arrives on time, but the foreman won't hire him until he passes a simple math test.
"I'm going to ask three questions", the foreman said. "You have to be able to answer all correctly.
Here is your first question,".

"Without using numbers, represent the number 9."

"Without numbers?" The Irishman says, "Dat is easy." And then proceeds to draw three trees.

"What's this?" the boss asks, scratching his head?
"Ave you got no brain? Tree and tree and tree make nine," says the Irishman.

"Fair enough," says the boss. "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 again 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, and dirty tree. Dat is 99."

The boss 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 Irishman stares into space some more, then he picks up the picture again and makes a little mark at the base of each tree and says, "Ere you go. One hundred."

The boss 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 says, "A little dog come along and crap 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."

"So, when do I start?"