2012 Year 9 &10 Mathematics Marathon (3 Viewers)

qwerty44

qwerty44

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Re: 2012 Year 9 &10 Mathematics Marathon

A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?
 
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TerenceM

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Re: 2012 Year 9 &10 Mathematics Marathon

Well if you're in the older years, posting questions you have done in the past would be great! xD
 
russ3l

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Re: 2012 Year 9 &10 Mathematics Marathon

qwerty44 said:
A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?
Click to expand...
i havent done capacity D:
 
twinklegal19

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Re: 2012 Year 9 &10 Mathematics Marathon

I still have my maths exam papers that I did last year, I will post up the question that I got wrong hehe (once the last few questions have been answered)

Anyone who wants past year 10 papers from my school, feel free to PM me :)
 
bleakarcher

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Re: 2012 Year 9 &10 Mathematics Marathon

mwong said:
i havent done capacity D:
Click to expand...
the question is basically asking for the maximum amount of mushrooms you can store in the standard case. you assume that each case is used to this maximum.
 
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TerenceM

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Re: 2012 Year 9 &10 Mathematics Marathon

twinklegal19 said:
Digging up my old year 9/10 maths books

A rectangular lawn, with length x m and width y m in the ratio 8:3, is surrounded on all sides by a path 80cm wide. The outer perimeter of the path is 50.4m. Find the area of the lawn.
Click to expand...
Area is

Whoops!
 
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ymcaec

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Re: 2012 Year 9 &10 Mathematics Marathon

probably 96 m2 ?
 
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ymcaec

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Re: 2012 Year 9 &10 Mathematics Marathon

qwerty44 said:
A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?
Click to expand...
5 kg ?
 
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TerenceM

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Re: 2012 Year 9 &10 Mathematics Marathon

qwerty44 said:
A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?
Click to expand...
I believe the capacity of the standard 14kg xD
 
twinklegal19

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Re: 2012 Year 9 &10 Mathematics Marathon

here's another one

simplify





EDIT: just fixed it, my bad
 
Last edited:
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TerenceM

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Re: 2012 Year 9 &10 Mathematics Marathon

5 sisters are born on 2 year successive intervals. The eldest sister is twice the age of the youngest sister. What is the age of the 3rd youngest sister?
 
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RivalryofTroll

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Re: 2012 Year 9 &10 Mathematics Marathon

Here's a good question:

Find the minimum value for the term 3^(x^2-8x+14)
 
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