You tell me what type of question this is: (1 Viewer)

[Grey Council]

Mr Sim instructed his assistant to place an order for 5 pairs of leather shoes and a number of paris of canvas shoes. A parit of leather shoes costs two and a half times as much as a pair of canvas shoes. His assistant made a mistake in the order and the number of pairs of the two types of shoes had been interchanged. This increased the bill by 33 and a third percent.

Find the ratio of the numbrs of pairs of canvas shoes to the number of pairs of leather shoes in the order that Mr Sim instructed his assistant to place.



For your information, I found this in a textbook that a friend of my fathers claims is a year 6 textbook in the top school of Pakistan. I find that hard to believe. In this very textbook, the following topics are covered:
Volume and surface area of cuboids, prisms, cylinders.
basic algebra
algebraic equations
basic geometry
properties of a triangle
etc

My point is, if you had to take a guess, which year would you say this textbook is for?

and on a side note, what is the GCE 'O' level examination?

 

[Rahul]

mate, i wouldnt be surprised if i was....i had done yr9-10 geometry in yr 5 in india....like vertically opposite angles, etc.

 

[ND]

That looks like about yr8/9 in aust i think? There's nothing really difficult there, just interpretting the question and solving a couple of sim. eqns. (mind you, i know a number of yr12 graduates who wouldn't be able to do it)

 

[:: ck ::]

ya places overseas (esp asian countries) learn stuff a lot more quicker and in advanced than us here

i had a year 5 textbook from hong kong before and it was equiv of probably year 8 or 9 here too

 

[kimmeh]

Originally posted by :: ryan.cck ::
ya places overseas (esp asian countries) learn stuff a lot more quicker and in advanced than us here

very true. thats why we have fobs kicking our asses all the time

 

[Xayma]

Originally posted by kimmeh
very true. thats why we have fobs kicking our asses all the time

Thats why they outsource, cause its cheaper to get them to do it, when they have learnt to the same level or above.

 

[Grey Council]

umm, what IS O level?


And can someone answer the darned question itself? What is the solution? lol

 

[Xayma]

I think its another countries grading system probably reffered to in the textbook he has.

 

[Grey Council]

ehe, i think so. It is year 10 (I think) in england.

ANYWAY, the only thing left is the answer to the darn question. I can't get the ratios.

 

[Xayma]

Originally posted by GuardiaN
ANYWAY, the only thing left is the answer to the darn question. I can't get the ratios.

The answer is 2canvas shoes:1 leather shoe.

Working:

The cost of 1 set of canvas shoes is 1unit.
The cost of 1 set of leather shoes is 2.5units.

Let the cost of the original order be x.
Let the unknown number of shoes be n.

so 12.5+n=x
2.5n+5=1&1/3x ---- [1]
Sub x=12.5+n into 1
1&1/3(12.5+n)=2.5n+5
16&2/3+1&1/3n=2.5n+5
11&2/3=1&1/6n
n=10

Since it asked for a ratio.
Ratio--- n:5
=10:5
=2:1 Canvas to Leather

 

[Grey Council]

Don't you think its above the year 6 level?

 

[Xayma]

Originally posted by GuardiaN


Don't you think its above the year 6 level?

Just the simulataneous equations bit, but then I could see someone learning it in yr 6 it doesnt require that much background knowledge.

 

[Grey Council]

hehhe, learning of basic algebra, and of solving normal algebraic equations and THEN solving simultaneous equations, and EVEN simultaneous equatiosn with three variables (which i still havent got the hang of) is simply not done in australia.

 

[mazza_728]

i thought that was quite challenging.. but then again im not really in the mood! after saying that though i have a huge problem interpreting questions.. when they bullshit on i cant get it! why cant they just come out and say it?? im really good at analysing but i cant interpret at all..does anyone else have the same prob?