Which of the following answer figures completes the series of the question figure?

DSSSB -28 August 2019 (Shift-2)

Reasoning

Hard

Appeared in: DSSSB -28 August 2019 (Shift-2)

Explanation

The correct figure is determined by systematically tracking the movement and transformation of each individual element across the three given frames.
The circle and square elements move one corner anti-clockwise in each step. The circle moves from top-left to bottom-left to bottom-right, so its next position is top-right. The square moves from bottom-right to top-right to top-left, so its next position is bottom-left.
The central triangle rotates 90 degrees anti-clockwise in each step (Up -> Left -> Down -> Right).
The small symbol in the center alternates between a plus (+) and a cross (x), so the next symbol must be an 'x'.
The relative horizontal position of the two central elements alternates. In frame 2, it's (Triangle, Symbol). In frame 3, it's (Symbol, Triangle). Therefore, in frame 4, it should revert to (Triangle, Symbol).
Image B is the only option where the circle is in the top-right, the square is in the bottom-left, the triangle points right, the symbol is 'x', and the central elements are arranged with the triangle on the left.

Option A: This option has the circle and square in the wrong positions. The triangle's orientation is incorrect, and the central symbol is a '+' instead of an 'x'.
Option C: This option is incorrect for the same reasons as Option A; it has incorrect positions for the corner elements, and the wrong rotation and symbol for the central elements.
Option D: This option correctly places the circle and square, and correctly identifies the triangle's rotation and the 'x' symbol. However, the relative position of the central elements is wrong. It shows the 'x' on the left and the triangle on the right, which breaks the alternating pattern of their horizontal arrangement.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain This question tests logical and visual reasoning skills, specifically the ability to identify multiple, simultaneous patterns in a sequence of figures as background academic context rather than a clinical decision trigger.
While this is a non-clinical question, it assesses abstract and logical reasoning skills.
Strong problem-solving and pattern recognition abilities are crucial for nurses in clinical practice. They help in interpreting complex patient data, recognizing deteriorating conditions from subtle changes in vital signs, and troubleshooting equipment.
What if the triangle rotated 90 degrees clockwise instead? The answer would change significantly, as the triangle in the final frame would point left, not right, making all current options incorrect.

How to Approach the Question

First, recognize that this is a series completion question where you must find the underlying rules.
Do not try to understand the whole picture at once. Instead, break down the complex figure into its individual components (circle, square, triangle, symbol).
Track the pattern for each component separately across the three given frames. Ask questions like: How does it move? Does it rotate? Does it change shape or color? Does it alternate?
For this question, you would identify four main patterns: the anti-clockwise movement of the corner shapes, the anti-clockwise rotation of the triangle, the alternation of the +/- symbol, and the swapping position of the central elements.
Once you have determined all the rules, construct a mental image of what the fourth frame should look like.
Finally, compare your prediction with the given answer choices to find the one that matches all the rules.

Concept Tested & Keywords

Concept Tested: This question tests logical and visual reasoning skills, specifically the ability to identify multiple, simultaneous patterns in a sequence of figures.
Stem keywords: figure series, completes the series, pattern recognition
Lead-in keywords: Which of the following

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