Puzzles - Number puzzles
Exercise : Number puzzles
262.

Answer
:
12
Explanation
:
Working from the bottom row to the apex of the triangle, the sum of the values in each row follows the sequence 15, 14, 13,12.
263.

Answer
:
6
Explanation
:
Each row and column of the diagram adds up to 15.
264.

Answer
:
A:319 B:424
Explanation
:
In the first oval, the sum of the separate digits of each 3 digit number is 9, and in the second oval, the sum of the separate digits is 7.
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