Answer:
1050
Step-by-step explanation:
Lottery codes in the format XYZ
X is an uppercase vowel
Y is an uppercase consonant
Z can be any single-digit number
So, there are 5 vowels.
We need to select 1 vowel from these 5
There 21 consonants.
We need to select 1 consonant from these 21
There are 10 single digit number 9(including 0)
We need to select 1 single digit number from these 10
Now we will use combination to find how many lottery codes are possible
Formula :
No. of lottery tickets are possible:
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=
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Hence 1050 lottery tickets are possible.