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72% of the students of a certain class took Biology and 44% took Matheratics - If each student took at least one subject from Biology or Mathematics and 40 took both then the total number of students in the class is :

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72% of the students of a certain class took Biology and 44% took Matheratics - If each student took at least one subject from Biology or Mathematics and 40 took both then the total number of students in the class is :






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