Question

Select the letters from among the given options that can replace the question mark (?) in the following series. K, M, O, ?, S, U,?, Y

• A. Q,X
• B. Q,W
• C. P,W
• D. R,W

Answer 1

Answer:

B. Q,W

Series:
K, M, O, ?, S, U, ?, Y

Observe the pattern: letters are skipping one letter each time.

• K → M (+2)

• M → O (+2)

• O → Q (+2)

• Q → S (+2)

• S → U (+2)

• U → W (+2)

• W → Y (+2)

So the missing letters are Q and W.