Which of the following letter-clusters will replace the question mark (?) in the given series?
UHS, OJQ, ILO, ENM, ?
- AAPK
- BAPL
- CBPK
- DAOK
Solution & Step-by-step Explanation
Let's break down the series by analyzing individual positions of the letter-clusters:
First letter: U(21)→O(15)→I(9)→E(5)→?
Looking closely, these are the English vowels in reverse order: U,O,I,E. The next vowel in reverse order is A. So, the first letter is A.
Second letter: H(8)→J(10)→L(12)→N(14)→?
The pattern here is +2 addition:
14+2=16⟹P
Third letter: S(19)→Q(17)→O(15)→M(13)→?
The pattern here is −2 subtraction:
13−2=11⟹K
Combining them, we get APK.
First letter: U(21)→O(15)→I(9)→E(5)→?
Looking closely, these are the English vowels in reverse order: U,O,I,E. The next vowel in reverse order is A. So, the first letter is A.
Second letter: H(8)→J(10)→L(12)→N(14)→?
The pattern here is +2 addition:
14+2=16⟹P
Third letter: S(19)→Q(17)→O(15)→M(13)→?
The pattern here is −2 subtraction:
13−2=11⟹K
Combining them, we get APK.