Habs 2011 maths paper
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Re: Habs 2011 maths paper
arrh ok i think am the one getting confused here.
my thoughts was that since it costs £80 in pounds then from the conversion rate it would automatically cost X2 in New zealand since
£1 = 2 NZ
but am getting it wrong?
my thoughts was that since it costs £80 in pounds then from the conversion rate it would automatically cost X2 in New zealand since
£1 = 2 NZ
but am getting it wrong?
Re: Habs 2011 maths paper
I assumed we were comparing to the US ... as I said it's not well worded.
Re: Habs 2011 maths paper
Yes i think thats the way myself and dd should look at it.
Thank you so much for this.
Well explained
Thank you so much for this.
Well explained
Re: Habs 2011 maths paper
How did you do the last part of Q29 please?
Thanks
Thanks
Re: Habs 2011 maths paper
Can you post the question or link to the paper please?
Re: Habs 2011 maths paper
Thanks for responding. please try the link below:
https://1drv.ms/i/s!AoSdb82VJJvLiCUf4CNcXBLi4LS9" onclick="window.open(this.href);return false;
Regards
https://1drv.ms/i/s!AoSdb82VJJvLiCUf4CNcXBLi4LS9" onclick="window.open(this.href);return false;
Regards
Re: Habs 2011 maths paper
On the third row down we know that the first two have to add to get 54 - assuming this is an addition pyramid?
you could use algebra and say a + b = 54 or use trial and improvement ie guess a pair
On the bottom row the second number must be a - 12 [it's got to add with a to get 12]
So a - 12 + 8 = b
If I was using trial and improvement then I'd guess
27 and 27 so the first gap on the bottom row would be 15 but 15 + 8 = 23 which is four less than we want so adjust.
28 and 26 so the first gap on the bottom row would be 16 but 16 + 8 = 24 which is two less than we want so adjust
29 and 25 so the first gap on the bottom row would be 17 ... 17 + 8 = 25 it works
you could use algebra and say a + b = 54 or use trial and improvement ie guess a pair
On the bottom row the second number must be a - 12 [it's got to add with a to get 12]
So a - 12 + 8 = b
If I was using trial and improvement then I'd guess
27 and 27 so the first gap on the bottom row would be 15 but 15 + 8 = 23 which is four less than we want so adjust.
28 and 26 so the first gap on the bottom row would be 16 but 16 + 8 = 24 which is two less than we want so adjust
29 and 25 so the first gap on the bottom row would be 17 ... 17 + 8 = 25 it works
Re: Habs 2011 maths paper
Thanks Guess55. I was wondering if it was a trial and error solution or if there was a something obvious I was missing. I started using algebra too but saw it was quite involved given that the paper is only an hour long!
Many thanks for your input. Much appreciated.
Many thanks for your input. Much appreciated.