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【OG20-P274-247题】
What is the value of 10 percent of y?
(1) 5 percent of y is 60.
(2) y is 80 percent of 1,500.
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题干:能求出y的值即可
条件1:5%y=60,y可以求,充分
条件2:y=80%*1500,y可以求,充分
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