Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
DIN, INS, NSX, SXC, ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. XCH.
Given series: DIN, INS, NSX, SXC, ?
D + 5 = I, I + 5 = N, N + 5 = S, S + 5 = X
I + 5 = N, N + 5 = S, S + 5 = X, X + 5 = C
N + 5 = S, S + 5 = X, X + 5 = C, C + 5 = H