Question : Directions: Which letter cluster will replace the question mark (?) to complete the given series?
CBOM, FCQN, ?, LEUP, OFWQ
Option 1: HDSO
Option 2: IDSO
Option 3: IDSP
Option 4: IDTO
Correct Answer: IDSO
Solution :
Given:
CBOM, FCQN, ?, LEUP, OFWQ
Add 3 to the positional value of the first letter, 1 to the positional value of the second letter, 2 to the positional value of the third letter, and 1 to the positional value of the fourth letter of the previous term to get the next term of the series –
CBOM→C + 3 = F; B + 1 = C; O + 2 = Q; M + 1 = N→FCQN
FCQN→F + 3 = I; C + 1 = D; Q + 2 = S; N + 1 = O→IDSO
IDSO→I + 3 = L; D + 1 = E; S + 2 = U; O + 1 = P→LEUP
LEUP→L + 3 = O; E + 1 = F; U + 2 = W; P + 1 = Q→OFWQ
So, IDSO is the missing term in the series. Hence, the
second option
is correct.
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