Question : Directions: A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
FOC, IMF, LKI, OIL, ?
Option 1: SHO
Option 2: RGO
Option 3: SGO
Option 4: RHO
Correct Answer: RGO
Solution :
Given:
FOC, IMF, LKI, OIL, ?
In the above-given series, add 3 to the place value of the first and third letters and subtract 2 from the place value of the second letter of the previous term to get the next term.
FOC→F + 3 = I; O – 2 = M; C + 3 = F
IMF→I + 3 = L; M – 2 = K; F + 3 = I
LKI→L + 3 = O; K – 2 = I; I + 3 = L
OIL→O + 3 = R; I – 2 = G; L + 3 = O
So, the missing term is RGO. Hence, the second option is correct.
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