Following question consists of problem figures followed by answer figures. Select a figure from amongst the answer figures which will continue the same series or pattern as established by the problem figures. PROBLEM FIGURES
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Track two things separately: how the open outer frame turns by an equal angle in each step, and how the inner square and its diagonal change.
Each problem figure has an outer frame (a square with one side missing) and an inner square with one diagonal. Outer frame: in figure 1 the missing side is the bottom side, in figure 2 it is the top-left side (the frame is tilted by 45 degrees) and in figure 3 it is the right side. So the gap moves 135 degrees clockwise in every step. The next figure therefore has the gap at the bottom-left side, with the frame tilted by 45 degrees. Inner square: it alternates between upright and tilted (a diamond), so the next one is a tilted diamond. Its diagonal turns by 45 degrees each step (slanting up, vertical, slanting down, then horizontal), so the next diagonal is horizontal. Option (4) shows a diamond with a horizontal diagonal and an outer frame missing its bottom-left side. Options (1) and (3) have the gap at the top-left and option (2) has a different inner figure. Answer: (4)
