SOLUTION: During one year in a school,0.625 of the student had measles,0.5 had chickenpox and 0.125 had neither. What fraction of the school had both measles and chickenpox?
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Question 983553: During one year in a school,0.625 of the student had measles,0.5 had chickenpox and 0.125 had neither. What fraction of the school had both measles and chickenpox? Answer by solver91311(24713) (Show Source):
If 12.5% had neither, then 87.5% had one or the other or both. The percentage that ONLY had measles is then 67.5% - if is the percentage that had both. And the percentage that ONLY had chicken pox is 50% - . Then the 87.5% is comprised of the number that only had measles, the number that only had chicken pox and the number that had both:
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John
My calculator said it, I believe it, that settles it
