1.

Of the four given equations, the first three are solved on the basis of a certain system. Find the correct answer for the unsolved fourth equation on the same basis.6 ∗ 5 = 918 ∗ 7 = 16910 ∗ 9 = 27122 ∗ 5 = ?

A. 993
B. 331
C. 845
D. 678
Answer» C. 845


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