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Solution

Correct Option: 2

In each block the pattern is (left x bottom) + top + right = centre. Block 1: 5x3 + 9 + 8 = 15+9+8... actually 8x5+9+3 = 52. Block 2: 9x3+11+8 = 46. Block 3: 8x6+15+8 = 71.

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