Question : Directions: Which of the following terms will replace the question mark (?) in the given series?
CM, EP, GO, IS, KQ, MV, OS, ?
Option 1: PY
Option 2: QY
Option 3: QZ
Option 4: QX
Correct Answer: QY
Solution :
Given:
CM, EP, GO, IS, KQ, MV, OS, ?
Add 2 to the place value of the first letter of the previous term to obtain the first letter of the next term.
C + 2 = E; E + 2 = G; G + 2 = I; I + 2 = K; K + 2 = M; M + 2 = O; O + 2 = Q
For the second letter of each term, add 2 and 3 alternatively to the place value of the letter of the previous term to get the second letter of the next term.
So, QY is the missing term of the series. Hence, the second option is correct.
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