Question
If 34 # 56 = 42 and 89 # 76 = 144, then 67 # 89 =
?Solution
(3 x 4) + (5 x 6) = 12 + 30 = 42 (8 x 9) + (7 x 6) = 72 + 42 = 114 (6 x 7) + (8 x 9) = 42 + 72 = 114
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