Exercise :: Series  Section 1
 Series  Section 1
 Series  Section 2
Each of the following questions consists of five figures marked A, B, C, D and E called the Problem Figures followed by five other figures marked 1, 2, 3, 4 and 5 called the Answer Figures. Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures.
21.  Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures. Problem Figures: Answer Figures: (A) (B) (C) (D) (E) (1) (2) (3) (4) (5) 

Answer: Option C Explanation: The symbols move in the sequence in the first step. In each subsequent step, the symbols move in the sequence obtained by rotating the previous sequence through 90^{o}ACW. Also, in each step, the symbol that reaches the encircled position gets replaced by a new one.

22.  Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures. Problem Figures: Answer Figures: (A) (B) (C) (D) (E) (1) (2) (3) (4) (5) 

Answer: Option D Explanation: In each step, all the elements move to the adjacent corner (of the square boundary) in a CW direction and the element that reaches the upperleft corner gets vertically inverted.

23.  Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures. Problem Figures: Answer Figures: (A) (B) (C) (D) (E) (1) (2) (3) (4) (5) 

Answer: Option C Explanation: In each step, one line segment is lost from the CWend of the outer element and a new line segment appears at the ACWend. Also, the inner 'L' shaped element rotates 90^{o}CW in each step.

24.  Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures. Problem Figures: Answer Figures: (A) (B) (C) (D) (E) (1) (2) (3) (4) (5) 

Answer: Option D Explanation: In each step, the first element moves to the third position and gets replaced by a new element; the second and the third elements move to the first and the second positions respectively and the entire figure rotates 90^{o}CW.

25.  Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures. Problem Figures: Answer Figures: (A) (B) (C) (D) (E) (1) (2) (3) (4) (5) 

Answer: Option C Explanation: We can label the arcs as shown . The arcs get inverted in the sequence (1 & 2), (3, 4 & 5), (6 & 1), (2, 3 & 4), (5 & 6),...........
