Which letter-cluster will replace the question mark (?) to complete the given series?
OWDU, QTHP, ?, UNPF ,WKTA
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. SQLK.
Given series; OWDU, QTHP, ?, UNPF, WKTA
O + 2 = Q; Q + 2 = S; S + 2 = U; U + 2 = W
W - 3 = T; T - 3 = Q; Q - 3 = N; N - 3 = K
D + 4 = H; H + 4 = L; L + 4 = P; P + 4 = T
U - 5 = P; P - 5 = K; K - 5 = F; F - 5 = A