Question

Find the next number letter in the given sequence:
$10000\text{Z}$, $1000\text{T}$, $100\text{N}$, $10\text{H}$, _____

• A. $1\text{A}$
• B. $1\text{C}$
• C. $2\text{B}$
• D. $1\text{B}$

Answer 1

The correct option is D $1\text{B}$

Given alphanumeric sequence: $10000\text{Z}$, $1000\text{T}$, $100\text{N}$, $10\text{H}$, _____

$\bullet$ Number sequence from alphanumeric sequence:
$10000$, $1000$, $100$, $10$, ______

By observing the above number sequence, we get the pattern as
$10000÷10=1000$,
$1000÷10=100$,
$100÷10=10$,
$10÷10=\underset{–}{1}$

$\therefore$ The next number in the number sequence is $\underset{–}{1}$.

$\bullet$ Alphabet sequence from alphanumeric sequence:
$\text{Z}$, $\text{T}$, $\text{N}$, $\text{H}$, ______

Number sequence corresponding to the positions of the alphabets:
$26$, $20$, $14$, $8$, _____


By observing $26$, $20$, $14$, $8$, _____, we get the pattern as
$26-6=20$,
$20-6=14$,
$14-6=8$,
$8-6=\underset{–}{2}$

So, the next number in $26$, $20$, $14$, $8$, _____ is $\underset{–}{2}$.

And, the alphabet corresonding to the postition $2$ is $\underset{–}{\text{B}}$.

$\therefore$ The next number letter in the alphanumeric sequence $10000\text{Z}$, $1000\text{T}$, $100\text{N}$, $10\text{H}$, _____ is $\underset{–}{1\text{B}}$, i.e., option (d.) is the correct one.