Answer Answer: Option C Explanation:Looking at the diagram in rows, the central circle equals half the sum of the numbers in the other circles to the left and right of the centre.
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Answer Answer: Option A Explanation:The number at the centre of each triangle equals the sum of the lower two numbers minus the top number.
Answer Answer: Option B Explanation:As you move diagonally down, numbers follow the sequence of Prime Numbers.
Answer Answer: Option B Explanation:Starting bottom left and moving clockwise around the triangle, numbers follow the sequence Numbers.
Answer Answer: Option C Explanation:Working from top to bottom, double each number and subtract 1, 2, then 3 etc.