Three Times

The Queen of Hearts gets more than she bargains for when she tries to buy something to wear for her husband, the King of Hearts, but finds that the 3 cards' stall at the courtyard sale only sells things in sets of 3. The King of Hearts in the counting house with the help of the Jackie of Spades works out how much the number cards raised in the courtyard sale. The 7 cards raised 21 pennies for the castle cleaning department and the 8 cards raised 24 pennies for the castle garden.