Question : Directions: Which of the following letter clusters will replace the question mark (?) and complete the following letter cluster series?
OG, RL, XQ, GV, (?)
Option 1: SA
Option 2: RZ
Option 3: SB
Option 4: RA
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Correct Answer: SA
Solution :
Given:
OG, RL, XQ, GV, ?
Add multiples of 3 to the first letter and 5 to the second letter of the previous term to obtain the next term in the series –
OG→O + 3 = R; G + 5 = L→RL
RL→R + 6 = X; L + 5 = Q→XQ
XQ→X + 9 = G; Q + 5 = V→GV
GV→G + 12 = S; V + 5 = A→SA
So, SA is the missing term in the series. Hence, the first option is correct.
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