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A teacher gave his class two quizzes; 80% of the class passed the first quiz, but only 60% of the class passed both quizzes. What percent of those who passed the first quiz also passed the second quiz?
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what do you think the answer is
I think its 60%. Is it Thanks
why do you think 60?
Because to get 60% of students to pass at least 60 need to.
thats one way to look at it another is 80% passed first 60% passed both so 60% passed second |dw:1407705816506:dw|
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