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Thread: Australian Maths Competition

  1. #626
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    Re: Australian Maths Competition

    Quote Originally Posted by Mongoose528 View Post
    How would you solve this algebraically: A nude number is a natural number of whose digits are a factor of the number. Find all 3 digit nude numbers where no digits are repeated.

    Can't seem to make in roads :/

    I can solve it case by case, but I want to know a quicker way of how to do it.
    Bump.

  2. #627
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    Re: Westpac Maths Comp marathon

    Hi can anyone solve question 27 of the 2013 Senior AMC paper. I have tried many different methods but just cannot get it to work. I've tried finding the ratio of the areas/solving the areas simultaneously and all that. Please someone help as I've been trying to figure it out for a fortnight now. Show Working

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    Re: Westpac Maths Comp marathon

    Quote Originally Posted by Drdusk View Post
    Hi can anyone solve question 27 of the 2013 Senior AMC paper. I have tried many different methods but just cannot get it to work. I've tried finding the ratio of the areas/solving the areas simultaneously and all that. Please someone help as I've been trying to figure it out for a fortnight now. Show Working
    Refer to the previous posts
    Quote Originally Posted by Mongoose528 View Post
    Here's a solution to one of them:

    Attachment 34157
    2017
    4u99 - 3u98 - EngAdv88 - Phys94 - Chem94
    Atar : 99.55
    Course: AdvSci(Hons)/Engineering(Hons) @ UNSW

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    Re: Australian Maths Competition

    A bit of help on this question please, this is a bit of practice for the AIMO.

    11.JPG

    This is all the working I've managed to do

    working.JPG
    Last edited by Mongoose528; 22 Aug 2017 at 9:34 PM.

  5. #630
    Supreme Member seanieg89's Avatar
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    Re: Australian Maths Competition

    Mongoose528 likes this.

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    Re: Australian Maths Competition

    How did everyone go for the Australian Maths Competition?

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    Re: Australian Maths Competition

    Got high 70s with Distinction, close to HD (

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    Australian Mathematics Competition

    I was just wondering if anyone has past papers and answers for this competition as I would like to make an start to practicing for the test. Year 8

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    Re: Australian Maths Competition

    Anybody going to AMC?

  10. #635
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    Re: Australian Maths Competition

    yes

  11. #636
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    Re: Australian Maths Competition

    im not really sure how to use the messenger on Bored of Studies but im in senior division; wouldnt mind comparing answers.

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    Re: Australian Maths Competition

    btw guys if ur under grade 12 i would recommend doing the unsw math comp. 6 questions in 3 hours; i didnt even get a credit sadly; but it is one of the funnest test out there; and i assume very similar to what you would get in uni; however similar topics to AMC; with the addition of some game theory. They actually have past papers unlike AMC too: https://www.maths.unsw.edu.au/highsc...ns-and-winners

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