A series is given with one term wrong. Select that wrong term from the given alternatives.
TS1, VO8, XK27, ZG64, BC125, EX216

Given: TS1, VO8, XK27, ZG64, BC125, EX216

Logic: 1st letter + 2, 2nd letter - 4 and number is increasing perfect cube of natural number.

For, 1st letter

T + 2 = V, V + 2 = X, X + 2 = Z, Z + 2 = B, B + 2 $$\ne$$ E​

For, 2nd letter

S - 4 = O, O - 5 = K, K - 4 = G, G - 4 = C, C - 4 $$\ne$$ X​

For, number

1​³= 1, 2³= 8, 3³= 27, 4​³= 64, 5³= 125, 6³= 216

So, EX216 is wrong term.

Thus, correct option is (c).