Find the odd one out:

Logic: 1st number × 2 = 3rd number, 2nd number × 2 = 4th number.

Lets check by options;

Option (a); IGRO (Not follow)

I × 2 = R, G × 2.148.. = O

Option (b); EMJZ (Follow)

E × 2 = J, M × 2 = Z

Option (c); CHFP (Follow)

C × 2 = F, H × 2 = P

Option (d); BLDX (Follow)

B × 2 = D, L × 2 = X

So,  IGRO is odd one out.

Thus, the correct answer is (a).a

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