Question 1

# Select the letter-cluster that can replace the question mark (?) in the following series.KQG, JTK, HXO, ECS, ?

Solution

(K - 1)(Q + 3)(G + 4) = JTK,
(J - 2)(T + 4)(K + 4) = HXO
(H - 3)(X + 5)(O + 4) = ECS
(E - 4)(C + 6)(S + 4) = AIW
$$\therefore$$ The correct answer is option B.