A card is drawn from a standard deck of 52 playing cards. Leave answers as fractions in lowest terms and odds as a ratio in lowest terms.

A card is drawn from a standard deck of 52 playing cards. Leave answers as fractions in

lowest terms and odds as a ratio in lowest terms.

the probability that the card is an odd-numbered card (1 mark)

Can anyone explain why there are 16 not 20 favourable outcomes, when a standard 52 deck has only 20 odd-numbered cards?