Question

A pack of playing card measures 1.3 cm when viewed sideways,what would be the measurement if all the aces were removed?

Answer 1

1.2 cm
The total deck is 52 cards (ignoring any jokers).
There are 4 aces, thus 4 / 52 = 1 / 13 cards is an ace.
Total thickness is 1.3 cm. Without the aces this becomes 1.2 cm