Permutation And Combination Quiz

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| By Cyrus_shah
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Cyrus_shah
Community Contributor
Quizzes Created: 1 | Total Attempts: 393
Questions: 3 | Attempts: 393

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Permutation And Combination Quiz - Quiz

Questions and Answers
  • 1. 

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

  • 2. 

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

  • 3. 

    There is no document available yet, please upload the document

  • 4. 

    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?

    • A.

      18

    • B.

      19

    • C.

      20

    • D.

      21

    • E.

      22

    Correct Answer
    E. 22
    Explanation
    In order to find the number of profitable films, we need to calculate the number of comedies and horror films separately. We know that 60% of the films were comedies, so 40% must be horror films. Since the studio made a total of 40 films, 40% of 40 is 16, which means there were 16 horror films.

    Next, we can calculate the number of profitable comedies and horror films. 75% of the comedies were profitable, so 75% of 60% of 40 is 18. Similarly, 75% of the horror films were unprofitable, so 75% of 40% of 40 is 12.

    To find the number of profitable films, we subtract the number of unprofitable films from the total number of films. 40 - 12 = 28. Therefore, 28 films were profitable.

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  • 5. 

    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. 

    • A.

      Statement 1 is sufficient

    • B.

      Statement 2 is sufficient

    • C.

      1 & 2 together

    • D.

      Each alone

    • E.

      None

    Correct Answer
    C. 1 & 2 together
    Explanation
    Statement 1 tells us that 25% of the 12 girls in the class are left-handed. Since there are no ambidextrous students, this means that 3 girls in the class are left-handed.

    Statement 2 tells us that 5 of the boys in the class are right-handed. Since there are no ambidextrous students, this means that all the boys in the class are right-handed.

    Combining both statements, we know that there are 3 left-handed girls and all the boys are right-handed. Therefore, the percentage of left-handed students in Mr. Henderson's class is (3/20) x 100 = 15%.

    Therefore, the answer is 1 & 2 together.

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  • 6. 

    Please fill answer below

    Correct Answer
    N/A

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 11, 2014
    Quiz Created by
    Cyrus_shah
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