Choose the correct alternative to fill in the blanks in the series: $...,...aba..., ...ba ...ab$

To answer these questions study carefully the following arrangement of letters, digits and symbols.

$6,=,\$, C,E, 3,8 ,G,L,M, 7, \star, @ ,P,R, 4, \# ,N,T, 5, S,V$

If all the symbols in the arrangement are removed, then which of the following will be the $7^{th}$ to the left of the $13^{th}$ element from the left end?

Fill in the blank space for the given series with the correct alternative.
$9, 11, 20, 31, (...), 82$

Fill in the blank space for the given series with the correct alternative.
$3, 8, 22, 63, 185, (\ldots)$

Find out the missing term for the given series from the given alternatives.
$AYD, BVF, DRH, ?, KGL$

These questions are based on the following arrangement. Study it carefully and answer the questions.

$J ,\star, R, 3, P,L ,2 ,\# ,I,N, 7, O,C, @ ,K, 5, D, =, M, \$, 6, B, > ,A ,Q ,4$

How many such symbols are there in the above arrangement each of which is immediately followed by a consonant and immediately preceded by a number?