How many such numbers are there in the above arrangement each of which is immediately followed by a vowel but not immediately preceded by a number?

A 8 B 6 # 7 H U % 3 $ F V R 2 I @ ↑ 4 1 W E 9 Ⓒ L 5

How many such numbers are there in the above arrangement each of which is immediately followed by a vowel but not immediately preceded by a number?

Vowels = A, E, I, O and U

Consonants = Except Vowels

Let us analyse every symbol with the preceding and succeeding elements.

Our aim is to find the elements of the form : Not a Number, Symbol, Consonant

6 # 7 = False ( Number before symbol)

U % 3 = False ( number after symbol)

3 $ F = False (Number before symbol)

I @ ↑ = False (Symbol after symbol)

@ ↑ 4 = False (Number after symbol)

9 Ⓒ L = False (Number before symbol)

Hence,no symbols in the above arrangement which is immediately followed by a vowel but not immediately preceded by a number.