Question : Directions: Which of the following letter clusters will replace the question mark (?) in the given series to make it logically complete?
PTA, QUB, RVC, SWD, ?
Option 1: XET
Option 2: TEX
Option 3: XTE
Option 4: TXE
Correct Answer: TXE
Solution :
Given:
PTA, QUB, RVC, SWD, ?
In the above-given series, add 1 to the place value of each letter of the previous letter cluster to obtain the next letter cluster.
PTA→P + 1 = Q; T + 1 = U; A + 1 = B
QUB→Q + 1 = R; U + 1 = V; B + 1 = C
RVC→R + 1 = S; V + 1 = W; C + 1 = D
SWD→S + 1 = T; W + 1 = X; D + 1 = E
So, the next term of the series is TXE. Hence, the fourth option is correct.
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