Find the missing term in the given series.
AZ, CX, FU, ___?___
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → JQ
In a two-letter series, the first letters and the second letters follow their own rules, so they are checked separately by their positions in the alphabet.
First letters A (1), C (3), F (6): the gaps are +2, +3, so the next is +4: 6 + 4 = 10, J
Second letters Z (26), X (24), U (21): the gaps are −2, −3, so the next is −4: 21 − 4 = 17, Q
Tip: Here the two letters of every term are mirror letters (A–Z, C–X, F–U, J–Q: positions adding to 27), so once J is found, Q follows at once.