Select the letter-pair that can replace the question mark(?) in the following series.
CSW, DUZ, EWC, FYF, ?, HCL
Answer & explanation
Correct answer: option 3
Given, CSW, DUZ, EWC, FYF, ?, HCL
For 1st letter , +1 , for 2nd letter , +2 and for 3rd letter , +3 , is used. So the next term is GAI.