Leo has two sets of number tiles in a game.
Set 1 Contains tiles with numbers 4, 7, and 10.
Set 2 Contains tiles with numbers 1, 5, and 8.
Leo chooses one tile from Set 1 and one tile from Set 2.
Write down all the possible combinations of tiles Leo can choose.
Leo adds the numbers on the two tiles to get a total. Work out the probability that the total is less than 10.
