Welcome to Test-paper.info
Friday, November 24 2017 @ 10:37 AM CST
 Select a Forum » General Chat » Primary 1 Matters » Primary 2 Matters » Primary 3 Matters » Primary 4 Matters » Primary 5 Matters » Primary 6 Matters » Question, Feedback and Comments » Education Classified
 Forum Index >  Test Paper Related >  Primary 6 Matters CBS SA2 2012 Question 17
 | Printable Version
 By: Strawberry (offline)  Sunday, September 08 2013 @ 12:07 PM CDT (Read 562 times)
Strawberry

Answer is 735.. But I don't understand how they get 7u + 42 = 9 u - 24 (how to get 24?)

Question

Regular Member

Registered: 01/31/09
Posts: 83

 By: echeewh (offline)  Sunday, September 08 2013 @ 06:15 PM CDT
echeewh

Hi <Strawberry>

Answer is 735.. But I don't understand how they get 7u + 42 = 9 u - 24 (how to get 24?)

My worked solution may not be exactly the same as what was provided. But based on your clarification, the (24) comes from this statement in the question as follows:

The number of beads Shamila gave away was 4/7 of the number of beads Rui Wen had at first.

<gave away>
S: -(4/7)[1u + 42] = - (4u/7) - 24

Hope this helps you to understand why theres (- 24) now??

Do let me know again if further clarification is needed.

Cheers and all the best,
Edward

Active Member

Registered: 04/21/11
Posts: 627

 All times are CST. The time is now 10:37 am.
 Normal Topic Locked Topic Sticky Topic
 New Post Sticky Topic w/ New Post Locked Topic w/ New Post
 View Anonymous Posts Able to Post HTML Allowed Censored Content