What should come in place of the question mark (?) in the given series based on the English alphabetical order?
CHK, GKO, ? , OQW, STA
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. KNS.
Given series: CHK, GKO, ? , OQW, STA
C + 4 = G, G + 4 = K, K + 4 = O, O + 4 = S
H + 3 = K, K + 3 = N, N + 3 = Q, Q + 3 = T
K + 4 = O, O + 4 = S, S + 4 = W, W + 4 = A