नीचे दी गई श्रृंखला पर विचार कीजिए (बाएं से दाएं गिनती करते हुए): @ 2 % * 4 2 & £ % 1 £ & 9 7 & 9 7 $ 9 1 $ 2 ऐसे कितने प्रतीक (Symbols) हैं, जिनमें से प्रत्येक के ठीक पहले एक संख्या है और ठीक बाद में भी एक प्रतीक है?

Refer to the following letter series and answer the question that follows. Counting to be done from left to right. (Left) S I C X Z O A K L N T E W A Q D F H G U K O (Right) How many such consonants are there, each of which is immediately preceded by a vowel and also immediately followed by a vowel?

Refer to the following letter and symbol series and answer the question. (Counting is to be done from left to right only): (Left) J W @ M E V ~ & P T ¥ G R Y € ! K C ◇ A D £ % B F $ I S L < Q % X Z (Right) How many such symbols are there each of which is immediately preceded by a letter and also immediately followed by another symbol?