Puzzles - Number puzzles
Exercise : Number puzzles
91.
Answer
:
2
Explanation
:
The sum of the 4 digits at the corners of the diagram is 17, as is the sum of the 4 digits in the middle of each side of the diagram.
92.
Answer
:
9
Explanation
:
Starting with the top left square, and moving clockwise around the other 3, the sum of the digits in each square follows the sequence 20, 19, 18, 17.
93.
Answer
:
71
Explanation
:
As you move clockwise around the diagram, add the previous 2 numbers together and subtract 3 to give the next number in the chain.
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