Mushhhh Mushhhh

21-03-2017
Mathematics

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There are a total of 20 students. In a classroom, the probability that the teacher chooses a boy from 20 students is 0.45. How many students are not boys

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eagerreader eagerreader

21-03-2017

.45= 45%
100%(total)-45%(boys)=55%(or .55; not boy)
%*Total=Part
.55*20=11

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