Which number should replace the question mark?
8 5 21
35 32 12
32 28 31
4 ? 28
A. 3
B. -2
C. -6
D. 48
Submitted by: AdministratorCorrect answer: C
(For each row subtract the second column from the first column. The result is equal to the sum of the digits in the last column.)
Submitted by: Administrator
(For each row subtract the second column from the first column. The result is equal to the sum of the digits in the last column.)
Submitted by: Administrator
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