A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

The average marks on a test taken by a group of 9 students was 59. Jack was absent . What will he need to score to make the average group 60

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @butterflydreamer

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @CGGURUMANJUNATH

  3. butterflydreamer
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    okay firstly, we know that the average for 9 students was 59. Work out their total marks by multiplying 9 and 59 = ?

  4. butterflydreamer
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    sooo 9 *59 = ? :)

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    531

  6. butterflydreamer
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    yes! Okay now, we know that Jack was absent.. So if Jack is PRESENT this will mean there will be 10 people in total right? We want the average of these 10 students to equal to 60. So, work out their total scores.... 10 * 60 = ?

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    600

  8. butterflydreamer
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Yeep, so Jack will need to score 600 - 531 = ?

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    69

  10. butterflydreamer
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    correct! :D

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thankss

  12. butterflydreamer
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    you're welcomeeee

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.