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Which of the given letter-number clusters will replace the question mark (?) in the following series to make it logically complete? IHD 78, EDZ 87,
Question

Which of the given letter-number clusters will replace the question mark (?) in the following series to make it logically complete?
IHD 78, EDZ 87, AZV 96, WVR 105, ?

A.

SRN 114

B.

SSM 114

C.

SQM 113

D.

SBL 113

Correct option is A

Given: IHD 78, EDZ 87, AZV 96, WVR 105, ?
Logic: Letters are decreasing - 4 and number is increasing + 9 place.
For, letter
I - 4 = E, E - 4 = A, A - 4 = W, W - 4 = S
H - 4 = D, D - 4 = Z, Z - 4 = V, V - 4 = R
D - 4 = Z, Z - 4 = V, V - 4 = R, R - 4 = N
For, number
78 + 9 = 87, 87 + 9 = 96, 96 + 9 = 105, 105 + 9 = 114
So, the missing term is SRN 114.
Thus, correct option is (a).

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