Question : Directions: Which letter cluster will replace the question mark (?) to complete the given series?
ACFD, CFHG, ?, GLLM, IONP
Option 1: EIJK
Option 2: EIJJ
Option 3: FIJJ
Option 4: EJJK
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Correct Answer: EIJJ
Solution :
Given:
ACFD, CFHG, ?, GLLM, IONP
Add 2 and 3 alternately to the place value of each letter of the previous term to obtain the next term in the series.
ACFD→A + 2 = C; C + 3 = F; F + 2 = H; D + 3 = G→CFHG
CFHG→C + 2 = E; F + 3 = I; H + 2 = J; G + 3 = J→EIJJ
EIJJ→E + 2 = G; I + 3 = L; J + 2 = L; J + 3 = M→GLLM
GLLM→G + 2 = I; L + 3 = O; L + 2 = N; M + 3 = P→IONP
So, EIJJ is the missing term in the series. Hence, the second option is correct.
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