Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

sha0403

  • 2 years ago

a school has 63 students studying A,B and C. 33 study A, 25 study B, 26 study C. 10 study A and B, 9 study B and C while 8 study both A and C. Equal num study all three subjects as those who learn none of the three. How many study all 3 subjects? #help me solve this question#

  • This Question is Closed
  1. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1356287630536:dw| a+b+d+e = 33 b+e+f+c = 25 d+e+f+g = 26 b+e = 10 f+e = 9 d+e = 8 e = 63 - (a+b+c+d) Solve for e..

  2. sha0403
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    where do you get e=63-(a+b+c+d)?

  3. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    It is given that - Equal num study all three subjects as those who learn none of the three. The people who do not study any of them are given by U - (A U B) Here, U = 63 .. And, A U B is given be (a+b+c+d+e) and, I considered the people who study all the three as 'e' And, Sorry, I did a mistake .. I would be -> e = 63 - (a+b+c+d+e)

  4. sha0403
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    why u no include f in e=63-(a+b+c+d+e)? can u explain me? i still not understand....

  5. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    those who learn none of the three subject ----> 63-(a+b+c+d+e+f+g)

  6. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    right ?

  7. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    e= 63-(a+b+c+d+e+f+g)

  8. sha0403
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i don't know but the answer is 3..

  9. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    pellet! :P I'm extremely sorry again! :P yeah, you are absolutely correct! - it ought to be 63 - (a+b+c+d+e+f+g)

  10. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    those who learn none of the three subject = total students - students learning atleast 1 subject, got this ?

  11. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    those who learn none of the three subject = U - (A U B U C) = 63-(a+b+c+d+e+f+g)

  12. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    so now did u get how e=63-(a+b+c+d+e+f+g) @sha0403 ?

  13. sha0403
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ook thank u so much u all for helping me...now i get it... ;)

  14. hartnn
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    good :) welcome ^_^

  15. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.