Ask questions and get helpful responses.
Ask a New Question
  1. Questions

Mathematics

in a class of 80 students,40 study physics, 48 study mathematics and 4 4 study chemistry. 20 study physics and mathematics. 24 study physics and chemistry and 32 study only two of the three subjects. if every student studies at least one of the three subjects, find
1 . the number of students who study all the three subjects.
2 . the number of students who study only mathematics and chemistry?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Frank

  1. I need solution for the question.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Frank

  2. If you are studying this topic , you must have learned about Venn diagrams.

    Draw 3 overlapping circles.
    label the intersection of all 3 as x
    low look at the double courses
    e.g. 20 study physics and math. That would be the intersection of
    the physics and the math circles, which already contains an x
    So label the part of physics and math but not chemistry as 20-x

    continue likewise for the rest of the data.
    You should have all the regions filled in.

    Answers can now be written by simply looking at these regions.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    mathhelper

  4. use calculator much faster than using this forum
    unless you're trying to figure out how to do somehting

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    joebama

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers

  2. Mathematics

    A survey of 100 students produced the following statics: 32 study mathematics, 20 study physics, 45 study Biology, 15 study mathematics and biology, 7 study mathematics and physics, 10 study physics and Biology, 30 do not study

  3. Algebra

    70 students are studying mathematics,physics & chemistry.40 students study mathematics,35 study physics and 30 study chemistry.15 students are studying all the three subjects.How many students are studying exactly two of the

  4. Math

    In a class of 40 students,the number of students who study history is 10 more than those who study French,if 8 students study both subject,then how many study French and how many study history ?

  1. maths

    In a class of 80 students, 53 study Art, 60 study Biology, 36 study Art and Biology, 34 study Art and Chemistry, 6 study Biology only and 18 study Biology but not Chemistry. Illustrate the information on a Venn diagram. Determine

  2. Mathematics

    In a class of 32students,18 offer chemistry, 16 offer physics and 22 offer mathematics, 6 offer all three subjects ,3 offer. Chemistry and physics only, and 5 offer physics only, each students offers at least one subject. Find the

  3. mathematics

    in a class, 156 students study science and mathematics.if they passed at least one subject and twice as many passed science as many passed mathematics and 75 passed in mathematics subjects, find how many passed in mathematics

  4. Mathematics

    There are 40 pupils in a class 30 of them study biology,22 study physics and 21 study chemistry.15 study physics and biology,10 study physics and chemistry and 13 study biology and chemistry.each student in the class studies at

  1. St.Peter's Boys Senior High School

    In a class of 500 students,60 study geography,40 study English,30 study geography and history,25 study English and history,if 10 study all the three subjects,find using venn diagram the number of students who study none of the

  2. Maths

    In a class of 80 students 53 study art,60 study biology,36 study art and biology,34 study art and chemistry,6 study biology only and 18 study biology but not chemistry.Illustrate the information on a Venn diagram.Determine the

  3. Mathematics

    In a class, the number of students studying French or history is 40.20, study both subjects and those who study french is 10 times more than the number who study history. Find how many study history and how many study French

  4. Mathematics

    In a class,30 offer Biology,21 offer Chemistry and 22 offer Physics.15 offer Physics and Biology,10 offer Physics and Chemistry and 13 offer Biology and Chemistry.2 offer Physics only,3 offer Chemistry only and 7 offer Biology

Still need help? You can ask a new question.