A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
A7F, E15J, I23N, ?
When the alphabets are sequentially numbered, i.e. A=1, B=2, C=3 and so on.
The number between the letters is the sum of the equivalent alphabets.
1st letter : A (+4 letters) = E (+4 letters) = I (+4 letters) = M
2nd letter : F (+4 letters) = J (+4 letters) = N (+4 letters) = R
Also, M + R $$\equiv13+18=31$$
Thus, missing term =Â M31R
=> Ans - (B)
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