Permutation And Combination Quiz

Of the films Empty Set Studios released last year, 60% were comedies and the rest were horror films. 75% of the comedies were profitable, but 75% of the horror moves were unprofitable. If the studio made a total of 40 films, and broke even on none of them, how many of their films were profitable?

If none of the students are ambidextrous, what percentage of the 20 students in Mr. Henderson's class are left-handed? (1) Of the 12 girls in the class, 25% are left-handed.(2) 5 of the boys in the class are right-handed. 

In 2013, which product has the highest net profit per cup ?

In 2013, which product has the highest net profit per cup ?

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