The Number of Elements in a Set easy problem help?
A survey of 500 high school students was taken to determine their favorite chocolate candy. Of the 500 students surveyed, 159 like Snickers, 151 like Twix, 176 like Reese's Peanut Butter Cups, 90 like Snickers and Twix, 99 like Twix and Reese's Peanut Butter Cups, 108 like Snickers and Reese's Peanut Butter Cups, and 56 like all three kinds of chocolate candy. How many students like no more than one kind of these chocolate candies?
why isnt it 60?
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