Question

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. RST, UVW, XYZ, ?

• A. ASD
• B. ABD
• C. ABC
• D. BGA

Answer 1

Answer:

C. ABC

The series is:

RST, UVW, XYZ, ?

Each cluster consists of three consecutive letters, and the starting letter advances by 3 each time:

• RST → R, S, T

• UVW → U, V, W

• XYZ → X, Y, Z

After Z, the alphabet wraps around to A.

So the next cluster is:

ABC

Answer: ABC