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Monday, December 11 2017 @ 03:01 PM CST
 Forum Index >  Test Paper Related >  Primary 4 Matters
 p4 parts and whole question
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By: tangara (offline)  Thursday, July 28 2011 @ 11:58 PM CDT (Read 1186 times)  
tangara

Hi forum experts,

I stumbled yet another P4 parts and whole question. Even though I have the answer I can't figure out why the model is drawn that way.

Connie and Alice had an equal amount of money.
Connie gave Alice $126.
Alice then had 4 times as much money as Connie.
How much money did Connie have at first?

I don't quite get it when the model shows Connie has two units and Alice got two units (after they draw the 1 : 4). :-(

Hope someone can kindly enlighten me.

Thank you very much.


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Registered: 07/31/10
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By: anniechew12 (offline)  Friday, July 29 2011 @ 12:45 AM CDT  
anniechew12

Hi,
Hopefully can solve your problem.
Try to attach the file but unsuccessful



252 / 3 = 84
1 block is 84
Corrine = 84+126 = 210
Alice = (84*4)-126 = 336-126 = 210

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By: YTNg (offline)  Friday, July 29 2011 @ 04:17 AM CDT  
YTNg

Hi, sorry I do not know how to draw model here, please refer to the attachment.

[file]

After giving away $126 to Alice, Connie is left with 1 unit.
Alice would have 4 units which were 1 unit + $126 + $126

3 units = $252
1 unit = $252 / 3 = $84

Now Connie has $84
She had $84 + $126 = $210 at first.

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By: tangara (offline)  Saturday, July 30 2011 @ 08:50 AM CDT  
tangara

My heartfelt thanks to both of you. Big Grin

Actually, I was racking my head why 3 units equal $252 because I kept thinking it should be 4 parts against 1 part.

Then, I asked my friend and realised that 4 units - 1 unit = 3 units. And hence the initial equal of Alice vs Connie is 2 units vs 2 units.

Hope my understanding is correct. Do correct me if I'm wrong.

Once again THANKS for taking the effort to explain to me.

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Registered: 07/31/10
Posts: 26

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