How many such consonants are there in the given series which are immediately preceded by consonant b...........

Logical Reasoning(Insurance) Alpha-Numeric Series

Directions : Study the following sequence and answer the given questions. A @ 3 4 % E N M $ 8 6 & L D S # 9 8 6 Q Y Z 1 7 % R O G @ 2 I B 2 U &

How many such consonants are there in the given series which are immediately preceded by consonant but not immediately followed by consonant?