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Explanation: This transformation follows three rules depending on the colour of the squares on
each end of the three lines. If both squares are white, they are removed. If both
squares are black, they become white. If there is a black and a white square, then both
squares become black. Option D is correct.

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Explanation: The figure is rotated through 90 degrees anticlockwise and then the colours are
inverted. Option C is correct

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Explanation: The figure should be considered as four separate elements. The square-withinsquare
is reflected in the vertical plane and the colours are inverted. The colours of the
three thick lines are inverted. The horizontal line is reflected in the vertical plane and
the vertical line is reflected in the horizontal plane. Option A is the correct answer.

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Explanation The figure is rotated through 90 degrees anticlockwise and then the colours are
inverted. Option D is correct

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Explanation The figure is rotated through 90 degrees clockwise and then reflected in the vertical
plane. Option B is correct