Puzzles - Logical puzzles

Answer : B Grid
Explanation : Working in rows, left to right, top row then bottom, one black circle is added each time, with the positions of the circles moving (1/4) turn clockwise each time.

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Answer : 6
Explanation : In each row of the diagram, the numerical value of the middle letter equals the sum of the left and right hand numbers, subtracting 3.

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Answer : A
Explanation : In each diagram, there are 2 lines of black dots, joining two sides together. The sides joined by the dots moves 1/4 turn clockwise as you move from left to right.

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