Following cards are put facing down AEIOU
A) a vovel
B) a card marked U
C) a consonant

Dear Student.

In this query I am assuming that we have to find probability for drawing a card as per given conditions.

Then,
A) There are 5 vowel A E I O U then the probability of drawing vowel
     = 5/5 = 1

B) There is only one U then the probability of drawing U 
​​​​     = 1/5

C) There is no consonant then the probability of drawing consonant
     = 0/5 = 0

​​​​​​​Regards