The given series is in the below pattern ,
First series :-
First term = 6
Second term = First term ÷ 2 = 3
Third term = Second term × 1.5 = 4.5
similarly , we can calculate the all next terms .
........... and so on.
Second series :-
First term = 40
Second term = First term ÷ 2 = 20
Third term = Second term × 1.5 = 30

Correct Option: E

The given series is in the below pattern ,
First series :-
First term = 6
Second term = First term ÷ 2
⇒ Second term = 6 ÷ 2 = 3
Third term = Second term × 1.5
⇒ Third term = 3 × 1.5 = 4.5
similarly , we can calculate the all next terms .
........... and so on.
Second series :-
First term = 40
Second term = First term ÷ 2
⇒ Second term = 40 ÷ 2 = 20
Third term = Second term × 1.5
⇒ Third term = 20 × 1.5 = 30
Fourth term = Third term ÷ 2
⇒ Fourth term = 30 ÷ 2 = 15
Hence , the place value of (c) is 15 .

The first letters of the terms are consecutive letters. The third letter of each term is moved three steps backward to obtain the third letter of the successive term. The middle letters of the first, second, third and fourth terms are moved one, two, three, and four steps forward respectively to obtain the middle letter of the successive terms.

Correct Option: B

The first letters of the terms are consecutive letters. The third letter of each term is moved three steps backward to obtain the third letter of the successive term. The middle letters of the first, second, third and fourth terms are moved one, two, three, and four steps forward respectively to obtain the middle letter of the successive terms.
The order of above series given as - + 1 , + 2 , - 3
MHZ, NIW, OKT, PNQ, ( ? )
So ? = QRN → 17 18 14
Hence , required answer will be QRN .

As per the details in the question the series is in the form of
The first letters of the terms are in alphabetical order, and so are the second and third letters.

Correct Option: D

As per the details in the question the series is in the form of
The first letters of the terms are in alphabetical order, and so are the second and third letters.
Hence required answer will be SXI .

The given series is in the below pattern,
1st letter moves +2, +3 and +4 steps respectively.
2nd letter moves –2, –3 and –4 steps respectively.

Correct Option: B

The given series is in the below pattern,
1st letter moves +2, +3 and +4 steps respectively.
2nd letter moves –2, –3 and –4 steps respectively.
Hence the place value of ? is JQ .

From given figure , it is clear that Each letter moves +2 steps.

Correct Option: B

From given figure , it is clear that
On adding 2 in Each letter of given series .We get , The next term of above given series is YXW.
Hence the correct option will be B .