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In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages?
Algebra
Chapter 1
Sets
Section 6
Subsets
Equations and Inequalities
Campbell University
Oregon State University
Harvey Mudd College
Baylor University
Lectures
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Let that be the set of people in committee who speak french and as be the set of people in committee who speaks spanish. So here, given number of people we speak french, which is 50 number of people we speak spanish equal to 20 number of people who speak spanish and french equal to 10. So here we have a formula for this number of elements. Mm uh, Union? S equal to number of elements in air bliss, number of elements in s negative number of elements in F in this section. As so now we get after putting the values 50 plus 20 negative 10 equal to 60. That is the value of number of people in there. The union as so here, we can say 60 people in the committee speak at least one of the two languages. So it is a work final answer.
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