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P6 5 marks Question
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TOPIC: P6 5 marks Question
#3744
P6 5 marks Question 1 Year, 7 Months ago Karma: 0
I need help in this question!!!
Question :
Troy's monthly allowance is $42 more than Earl's. Earl spends $54 more than Troy every month. Earl's savings is 1/2 of Troy's savings. If Troy spends 3/7 of his allowance every month,what is his allowance for the entire year?
Jeslyn Lam
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#3753
Re:P6 5 marks Question 1 Year, 7 Months ago Karma: 138
Tim's monthly allowance is $42 more than Earl's. Earl spends $54 more than Tim every month. Earl's savings is 1/2 of Tim's savings. If Tim spends 3/7 of his allowance every month,what is his allowance for the entire year?

To solve this problem, we can draw a model of the situation and use the ratio of Tim's savings to spent to determine the allowance for 1 month.




You have raised some good questions. Which book or paper are they from ?
Chris Rogers
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Last Edit: 2010/07/27 20:08 By Chris.
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#3756
Re:P6 5 marks Question 1 Year, 7 Months ago Karma: 0
The questions are from 4-5 years ago schools exam papers. Anyways, thanks for your help!
Jeslyn Lam
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#3978
Re:P6 5 marks Question 1 Year, 6 Months ago Karma: 0
Erm... why is there a additional of $54 in Earl's part in your model? I thought Earl spends $54 more than Troy? I thought is a subtraction of $54 in Earl's part? Did u see the question wrongly as Earl saved $54 more than Troy every month?
Jeslyn Lam
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#3979
Re:P6 5 marks Question 1 Year, 6 Months ago Karma: 138
The solution is correct.

Try using Tim's / Troy's allowance of $336 each month and working through the information provided in the question. You will see that the numbers work out correctly. With regards to the "additional" $54, the grey part of the model indicates spent as does the information in the blue boxes explaining the model - "savings on the right and spending on the left".
Chris Rogers
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#3987
Re:P6 5 marks Question 1 Year, 6 Months ago Karma: 5
You could also use a combination of units and model drawing to solve this.
mathmerized
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Last Edit: 2010/07/28 02:11 By mathmerized.
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