Question

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series: BDFH, BFJN, BHNT, BJRZ, ?

• A. BLVF
• B. BGFD
• C. BNJH
• D. BFDS

Answer 1

Answer:

A. BLVF

Consider each position separately.

Series:

BDFH, BFJN, BHNT, BJRZ, ?

1st letter

• B, B, B, B → B (constant)

2nd letter

• D, F, H, J → +2 each time

• Next = L

3rd letter

• F, J, N, R → +4 each time

• Next = V

4th letter

• H, N, T, Z → +6 each time

• H → N (+6)

• N → T (+6)

• T → Z (+6)

• Z → F (+6, wrapping around the alphabet)

So the missing cluster is:

BLVF

Answer: BLVF