Question : Directions: Which of the following letter clusters will replace the question mark (?) in the given series?
OD, LA, IX, FU, ?
Option 1: BR
Option 2: CS
Option 3: CR
Option 4: CT
Correct Answer: CR
Solution :
Given:
OD, LA, IX, FU,?
Subtract 3 from the place value of the first and second letter, to get the required missing term in the series –
OD→O – 3 = L; D – 3 = A→LA
LA→L – 3 = I; A – 3 = X→IX
IX→I – 3 = F; X – 3 = U→FU
FU→F – 3 = C; U – 3 = R→CR
So, the required missing term in the series is CR. Hence, the third option is correct.
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