25
45
15
55
Correct answer is A
|42−123−1−113| 4 |3−113| -2 |2−1−13| -1 |23−11| 4[(3 x 3) - (-1 x 1)] -2 [(2x 3) - (-1 x -1)] -1 [(2 x 1) - (-1 x 3)] = 4[9 + 1] -2 [6 - 1] -1 [2 + 3] = 4(10) - 2(5) - 1(5) = 40 - 10 - 5 = 25
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