Question : Directions: Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
BY, ?, DW, EV, FU
Option 1: CE
Option 2: AX
Option 3: AU
Option 4: CX
Correct Answer: CX
Solution :
Given:
BY, ?, DW, EV, FU
Add 1 in the first letter and subtract 1 from the second letter, to obtain the required missing term –
BY → B + 1 = C, Y – 1 = X → CX
CX → C + 1 = D, X – 1 = W → DW
DW → D + 1 = E, W – 1 = V → EV
EV → E + 1 = F, V – 1 = U → FU
So, CX is the required missing term in the series. Hence, the fourth option is correct.
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