Can you solve for x?
40 16 20 24 12 16 12 8 x
Permalink: http://problemotd.com/problem/tricky-table/
Emmanuel - 9 years, 11 months ago
x = 0 ? (Not sure).
There seems to have something to do with 4, alternating - or +.
First row: 40 - 16 - (4) = 20
Second row: 24 - 12 + (4) = 16
Third row: 12 - 8 - (4) = 0
Same if you look at it as columns:
First column: 12 + 24 + (4) = 40
Second column: 8 + 12 - (4) = 16
Third column: 0 + 16 + (4) = 20
just a guess
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Comments:
Emmanuel - 9 years, 11 months ago
x = 0 ? (Not sure).
There seems to have something to do with 4, alternating - or +.
First row: 40 - 16 - (4) = 20
Second row: 24 - 12 + (4) = 16
Third row: 12 - 8 - (4) = 0
Same if you look at it as columns:
First column: 12 + 24 + (4) = 40
Second column: 8 + 12 - (4) = 16
Third column: 0 + 16 + (4) = 20
just a guess
reply permalink