Question

Answer with full process.​

Answer 1

assign all alphabets numbers

then u will get all are odd except (a).

2,3,5,9

3,5,7,11

5,7,11,13

7,11,13,17

Answer 2

Answer:

Number the alphabets:

A 1 , B 2 , C 3 , D 4 , E 5 , F 6 , G 7 , H 8 , I 9 , J 10 , K 11 , L 12 , M 13 , N 14 , O 15 , P 16 , Q 17 , R 18 , S 19 , T 20 , U 21 , V 22 , W 23 , X 24 , Y 25 , Z 26

BCEI = 2 3 5 9

CEGK = 3 5 7 11

EGKM = 5 7 11 13

GKMQ = 7 11 13 17

As we see the pattern, all the numbers are odd number except in the case (a)

Answer: (a)

Thank you!

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