T # K 7 P N 3 R ? 3 S Q S A 9 @ 4 E G % 8 J B 6 M ! V 9 Z Which is the 4th…

Concept

In a linear sequence of N elements, the nth element counted from the right end sits at position (N − n + 1) counted from the left end. An instruction to move further “to the right” from a reference position shifts toward the right-hand end of the row; because that end is fixed, each such shift reduces the “position counted from the right end” by the same number of places.

Application

The row T # K 7 P N 3 R ? 3 S Q S A 9 @ 4 E G % 8 J B 6 M ! V 9 Z has 29 elements in total.

1. Locate the 24th element from the right end: from the left end this is position 29 − 24 + 1 = 6.

2. Read the element at position 6 from the left end: it is N.

3. Shift 4 places further to the right from position 6: 6 + 4 = 10.

4. Read the element at position 10 from the left end: it is 3.

Cross-check

Since the right end is a fixed boundary, moving 4 places toward it from the 24th position (from the right) must land on the (24 − 4) = 20th position from the right end. Counting 20 places in from the right end of the same 29-element row also gives 3, confirming the answer by an independent count.