Given:
A deck of 52 playing cards is given.
Required:
Probability of selecting a number card, a red card and an ace.
Answer:
There are 40 number cards.
Therefore, probability of selecting a number card=

There are 26 red cards.
Therefore, probability of selecting a red card=

The probability of selecting an ace =

Final Answer:
The Probabilities of selecting a number card, a red card and an ace are,

respectively.