GATE2018 ME-2: GA-3

Question

Find the missing group of letters in the following series:

$BC, FGH, LMNO,$ ______

• A. $UVWXY$
• B. $TUVWX$
• C. $STUVW$
• D. $RSTUV$

Comments

The second term in series would be FGH.

Answer 1

Obviously, B is correct 😊

We display K characters and then skip K characters. K starts with 2 and increments by 1 at the end of each iteration. Also, we start displaying from Upper-Case "B"

Display 2 Characters:  BC

Skip 2 Characters: DE

Display 3 Characters: FGH

Skip 3 Characters: IJK

Display 4 Characters: LMNO

Skip 4 Characters: PQRS

Display 5 Characters: TUVWX

Comments

I don’t know if this approach is right or wrong. Take the first character of each group.

$ B – 2 , F – 6, L – 12$  and hence $T – 16 $

Answer 2

F-C=3

L-H=4

T-O=5

The only series that starts with T is Option B is Answer.