VQ – PK, QL – KF, TO – NI, UP – OI – Which is the letter-cluster pair that DOES NOT belong to that group?

Step 1: Convert letters to alphabetical positions

VQ → PK

• V → 22, Q → 17

• P → 16, K → 11

QL → KF

• Q → 17, L → 12

• K → 11, F → 6

TO → NI

• T → 20, O → 15

• N → 14, I → 9

UP → OI

• U → 21, P → 16

• O → 15, I → 9

Step 2: Find the pattern (letter difference)

For each pair, check the difference between first letters of first and second cluster, and second letters of first and second cluster:

VQ → PK

• 22 − 16 = 6

• 17 − 11 = 6

QL → KF

• 17 − 11 = 6

• 12 − 6 = 6

TO → NI

• 20 − 14 = 6

• 15 − 9 = 6

UP → OI

• 21 − 15 = 6

• 16 − 9 = 7 ✅

Step 3: Identify the odd one out

All pairs except UP → OI have a difference of 6 for both letters.

Odd one out = UP → OI