Count On

What a card!

You are a conjuror with a pack of 15 cards. One of your audience volunteers to help with a card trick. You ask your helper to choose a card, show it to the audience then back. Now shuffle the cards and deal out five columns of three cards face up.

Next repeat the following three steps three times:

1. Ask the helper which row the chosen card is in
2. Collect up each row in order, then put together the rows with the chosen row in the centre.
3. Deal out five columns of three cards face up.

First:

Second:

In the next deal the chosen card should be in the centre:

What a card!