Directions: Study the following sequence carefully and answer the question given below.

$ W 7 K 9 # M 5 E 2 @ T 8 B & 4 V 1 % L 6 *

Which element is 17th from the right end of the row?

The correct answer is #.

Step-by-step explanation:

Given sequence of elements (from left to right):

$ W 7 K 9 # M 5 E 2 @ T 8 B & 4 V 1 % L 6 *

First, let's count the total number of elements in the given sequence:

Total number of elements = 22

Method 1: Counting directly from the right end

Counting starting from the rightmost element (*):

1st element from right: *
2nd element from right: 6
3rd element from right: L
4th element from right: %
5th element from right: 1
6th element from right: V
7th element from right: 4
8th element from right: &
9th element from right: B
10th element from right: 8
11th element from right: T
12th element from right: @
13th element from right: 2
14th element from right: E
15th element from right: 5
16th element from right: M
17th element from right: #

Method 2: Using the position formula

We can convert the position from the right end to the position from the left end using the formula:

$\text{Position from left}=(\text{Total elements}+1)-\text{Position from right}$

Substituting the values:

$\text{Position from left}=(22+1)-17=23-17=6$

Now, counting 6 elements from the left end:

1st element from left: $
2nd element from left: W
3rd element from left: 7
4th element from left: K
5th element from left: 9
6th element from left: #

Hence, the 17th element from the right end of the row is #.