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The correct answer is C.

Rule 1: The number of stars in the top right predicts how many horizontal lines will be in the next box.

Rule 2: The circles alternate with triangles.

Rule 3: The number of circles or triangles is the sum of the number of circles and triangles in the previous two boxes, with the black shading obscuring some shapes.

Note: even though the black shading is obscuring some of the 13 triangles, it is possible to see that C is the correct answer by process of elimination; i.e. a particular rule excludes all of the other possible answers.

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The correct answer is A.

Rule 1: The position of the shapes in the current item is determined by the direction the triangle is pointing in the previous item. There is no rule to determine the direction of the arrow in the current item, only its position.

Rule 2: The shape inside the triangle changes in the repeating sequence circle, square, star.

Rule 3: The shading in the shapes alternates between the shape in the middle and the triangle.

Rule 4: The shapes grow small, medium, large then back to small, medium etc.

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The correct answer is D.
Rule 1: The shapes move one corner anticlockwise each time.
Rule 2: The shapes alternate between circle and square.
Rule 3: The hatching changes between hatched and unhatched every other
graphic in the sequence. I.e. off, off, on, on, off, off ... and so on.
Rule 4: The shapes grow small, medium, then large, then start again.

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The correct answer is D
First Rule: Two bricks are added each time, starting from the centre andvworking outwards. Each row is completed before the next is started, andvaddition of two half bricks counts as adding one whole brick.

Second Rule: Bricks on the bottom left to top right diagonal have upwardvsloping cross-hatching.

Third Rule: The circle alternates between being on whole bricks that are central, and whole bricks that are on the far right.
Fourth Rule: Reading left to right, downward sloping cross-hatching is applied to the first, then second, then third full brick on every row, with incomplete rows being treated as though they were complete when determining this
pattern. This sequence then repeats.

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The correct answer is E

First Rule: The shading of the small triangles moves 3 triangles anti-clockwise
each time.

Second Rule: The cross-hatching on the kite shapes near the corners of the
figure, which is always in the direction of the nearest corner, moves clockwise,
alternating between moving one shape and moving two.

Third Rule: The centre shapes alternates between having downward sloping
cross-hatching and having upward sloping cross-hatching.