In the figure above, the sum of the three numbers in the horizontal row equals the product of the three numbers in the vertical column. What is the value of xy ?
6
15
35
75
90
题目分析:
横向的三个数字的和就是 37+38+15=90,纵向的三个数的积就是 ~$15xy$~.~$15xy=90$~,得出 ~$xy=6$~.
综上:答案就是 A.
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