Study the following arrangement carefully and answer the questions given below:

$7, R,E,T ,4 ,A ,9 ,\% ,D,F, 1, U, \# ,B ,@ ,8 ,H,I ,$©$, W,M, \star, 3,2 ,V ,\$ ,5 ,N,P,6, Q$

How many such vowels are there in the above arrangement, each of which is immediately followed by a symbol?

Study carefully the following arrangement of letters, digits and symbols to answer these

questions.

$M, 7 , \# , 8, L ,P ,@ ,Q ,N ,\beta ,T ,Y ,3 ,2 ,= ,E ,\$ ,4 ,9 ,*, G ,H ,5$

If all the numbers are deleted from the arrangement, then which of the following will be fifth to the right of the $13^{th}$ element from the right end?

Choose the correct alternative answer

$a...cdaab...cc....daa...bbb....ccddd$

Choose the correct alternative for the missing term in the series:
$QPO, SRQ, UTS, WVU, ?$

Find out the wrong term from the given series:
$15, 16, 22, 29, 45, 70$

Fill in the blank space for the given series with the correct alternative.
$121, 225, 361, (\ldots)$