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Un article trouvé pour ce sujet.
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350 students took the math A exam |
2002-02-22 |
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Jim pose la question :
at a high school 350 students took the math A exam. 82% passed the test. 40 students that failed the exam in june, took the exam in August. 70% of this group passed the August test. How many of the original 350 students have passed the exam before september?
Paul Betts and Penny Nom lui répond. |
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