This question is based on the following 3-letter words. RAT, DOT, FRY, CUT. If in each of the words, each letter is changed to the next letter in the English alphabetical order, how many words thus formed will have no vowel?

Correct option is D

Given:

​3-letter words. RAT DOT FRY CUT

If in each of the words, each letter is changed to the next letter in the English alphabetical order

Let's transform each letter of the given words to the next letter in the English alphabetical order and then check for the presence of vowels.

R+1=S, A+1=B, T+1=U   →   Transformed word: SBU

D+1=E, O+1=P, T+1=U    →  Transformed word: EPU

F+1=G, R+1=S, Y+1=Z    →   Transformed word: GSZ

C+1=D, U+1=V, T+1=U   →   Transformed word: DVU

So, the only word formed with no vowels is GSZ.

Thus, correct option is (d)