⁞ Number Puzzle
Puzzles ➤ Number Puzzle ➤ 1
Question 11
Q11. Which number replaces the question mark ?
Answer : 1
In each circle, add together the numbers in the left and right hand segments, and subtract 2 to give the result in the lower segment.
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Question 12
Q12. Which number replaces the question mark ?
Answer : 0
Working from left to right and reading each pair of numbers as a 2 digit value, these values represent the sequence of multiples of 7, starting at 49 and finishing on 70.
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Question 13
Q13. Which number replaces the question mark ?
Answer : 9
The number at the centre of each triangle equals the sum of the lower two numbers minus the top number.
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Question 14
Q14. Which number replaces the question mark ?
Answer : 39
Working from top to bottom, double each number and subtract 1, then 2, then 3 etc.
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Question 15
Q15. Which number replaces the question mark ?
Answer : 6
The numbers in each row and column add up to 15.
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