Which of the given letter-clusters will replace the question mark (?) in the following series?
CEYS, EIAV, GMCY, ?, KUGE
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. IQEB.
Given series: CEYS, EIAV, GMCY, ?, KUGE
C + 2 = E, E + 2 = G, G + 2 = I, I + 2 = K
E + 4 = I, I + 4 = M, M + 4 = Q, Q + 4 = U
Y + 2 = A, A + 2 = C, C + 2 = E, E + 2 = G
S + 3 = V, V + 3 = Y, Y + 3 = B, B + 3 = E