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.
16.  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, the pin rotates 90^{o}CW and the arrow rotates 90^{o}ACW.

17.  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 B Explanation: In one step, the figure gets laterally inverted and one line segment is lost from the upper end of the RHS portion of the figure. In the next step, the figure gets laterally inverted and one line segment is lost from the upper end of the LHS portion of the figure.

18.  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 B Explanation: The elements move in the sequence's and alternately.

19.  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: All the elements move halfaside of the square boundary in ACW direction in each step. Also, first, third and fifth elements are replaced by new elements in one step and second, fourth and sixth elements are replaced by new elements in the next step. The two steps are repeated alternately.

20.  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 E Explanation: In the first step, the ACW end element moves two spaces (each space is equal to halfaside of the square boundary) in an ACW direction. In the second step, the CWend element moves three spaces ACW. In the third step, the remaining element moves four spaces ACW. The three steps are repeated to continue the series.
