<![CDATA[2017 - Raffles - SA1 Maths]]>

Suma Vaddadi:
Thank you very much for your replies.

Is there a model drawing approach to solve this problem? It is easier to be solved in algebra as you have highlighted above but what school expects is the solution with model drawing.
Once again great effort and really appreciate it.
Best regards
Suma
That is the model approach.
You have to draw out the models then write out the equations.

For the drawings, substitute the U for a box and put U inside.
Even in modeling, you still need to use equations (single unknown).

]]>https://forum.kiasuparents.com/topic/91200/2017-raffles-sa1-mathsRSS for NodeTue, 05 May 2026 03:29:39 GMTTue, 01 May 2018 06:13:32 GMT60<![CDATA[Reply to 2017 - Raffles - SA1 Maths on Tue, 01 May 2018 04:14:59 GMT]]>Thank you very much for your replies.

Is there a model drawing approach to solve this problem? It is easier to be solved in algebra as you have highlighted above but what school expects is the solution with model drawing.
Once again great effort and really appreciate it.
Best regards
Suma

]]>https://forum.kiasuparents.com/post/1845420https://forum.kiasuparents.com/post/1845420Tue, 01 May 2018 04:14:59 GMT<![CDATA[Reply to 2017 - Raffles - SA1 Maths on Mon, 30 Apr 2018 00:56:29 GMT]]>301-152=149

Before:
SP: U+301
T: U+149

After:
SP: U
T : 4U=U+149+301=U+450

U=450/3=150
Total=150x5=750

]]>https://forum.kiasuparents.com/post/1845214https://forum.kiasuparents.com/post/1845214Mon, 30 Apr 2018 00:56:29 GMT<![CDATA[Reply to 2017 - Raffles - SA1 Maths on Mon, 30 Apr 2018 00:10:27 GMT]]>Before

SP \tU + 152
T \tU

After:
SP \tU + 152 – 301 = U -149
T\t(U + 152 – 301) * 4 = (4U – 596)

Total amount before and after is the same:

U + 152 + U = U – 149 + (4U – 596)
2U + 152 = 5U -745
3U = 897
U = 299

Total they have altogether = 2U + 152 = 750

Ps: You might want to go to this part of the forum to post your specific syllabus questions. They are sorted into subjects & levels & there are a lot more gurus there to help you out.
https://www.kiasuparents.com/kiasu/askq/

]]>https://forum.kiasuparents.com/post/1845210https://forum.kiasuparents.com/post/1845210Mon, 30 Apr 2018 00:10:27 GMT