Question

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options.

Q1F, S2E, U6D, W21C, ?

• A. Y66B
• B. Y44B
• C. Y88B
• D. Z88B

Answer 1

The correct option is D Z88B

The first letter of each term is moved two steps forward and
the last letter is moved one steps backward to obtain the corresponding letters of the next term.
The number series runs as follows :
1 $\times$ 1 + 1 = 2,
2 $\times$ 2 + 2 = 6,
6 $\times$ 3 + 3 = 21,
21 $\times$ 4 + 4 = 88.