GATE Electrical 2020 | GA Question: 7

Question

Select the next element of the series: $\text{Z, WV , RQP,}$ _____

• A. $\text{LKJI}$
• B. $\text{JIHG}$
• C. $\text{KJIH}$
• D. $\text{NMLK}$

Answer 1

In first place we have one letter, in second place we have two-letters and so on.

Now, we can follow the pattern.

• $Z \overset{-3}{\rightarrow} W \overset{-5}{\rightarrow} R \overset{-7}{\rightarrow} K$
• $V \overset{-5}{\rightarrow} Q \overset{-7}{\rightarrow} J $
• $P \overset{-7}{\rightarrow} I $
• $H$

So, the correct answer is $(C).$

Comments

z -->W -3 SA HOGA NA KI -4 BRO

Answer 2

Ans C.

Sequence Number of Letter 

Z	W, V	R, Q, P
26	23, 22	18, 17, 16

LKJI	JIHG	KJIH	NMLK
12, 11, 10, 9	10, 9, 8, 7	11, 10, 9, 8	14, 13, 12, 11

 

Number of Letters increasing in – 1 – 2 – 3 – (4 letters)

Difference in Letter coding Between terms

First – Second = $26-23=3$ (Y, X, W)

Second – Third = $18-22=4$ (U, T, S, R)

Third – Fourth = $16-x= 5, x=11$  Starting from K