\left. \begin{array} { l } { 87 + 92 = 18 } \\ { 57 + 83 = 13 } \\ { 1 – InterviewSolution

1.

\left. \begin{array} { l } { 87 + 92 = 18 } \\ { 57 + 83 = 13 } \\ { 12 + 61 = 4 } \\ { 62 + 31 = \dots ? } \end{array} \right.

Answer»

93 Is the correct answer

(8+7)+(9-2)-4=18(5+7)+(8-3)-4=13(1+2)+(6-1)-4=4(6+2)+(3-1)-4=6

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