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 Post subject: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 5:23 pm

Joined: Wed Mar 09, 2011 2:22 pm
Posts: 710
There is a sequence of numbers and you have to find the next two...

8. 8.5. 9.5. 11.5.

I think the next two numbers should be 15.5 and 23.5

Would anyone come up with different numbers?

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 6:05 pm

Joined: Wed Mar 09, 2011 2:22 pm
Posts: 710
Oops, I'm not sure where those stray full stops came from! The numbers are

8
8.5
9.5
11.5

Any ideas what you think the answers in the Bond book are??

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 6:11 pm

Joined: Wed Apr 13, 2011 10:25 pm
Posts: 463
I'm not the best at maths but I would expect 13.5 and 16.0.

As the numbers move from left to right 0.5 is added each time.

8.0+0.5=8.5
8.5+1=9.5
9.5+1.5=11.5
11.5+2.0=13.5
13.5+2.5=16.

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 6:38 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8598
Thingsbehindthesun wrote:
I'm not the best at maths but I would expect 13.5 and 16.0.

As the numbers move from left to right 0.5 is added each time.

8.0+0.5=8.5
8.5+1=9.5
9.5+1.5=11.5
11.5+2.0=13.5
13.5+2.5=16.

trouble is that 9.5+1.5 = 11

perhaps the sequence is
8.0 + 0.5
8.5 + 1 = 9.5
9.5 + 2 = 11.5
11.5 + 4 = 15.5
15.5 + 8 = 23.5

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 6:51 pm

Joined: Wed Mar 09, 2011 2:22 pm
Posts: 710
hermanmunster wrote:
Thingsbehindthesun wrote:
I'm not the best at maths but I would expect 13.5 and 16.0.

As the numbers move from left to right 0.5 is added each time.

8.0+0.5=8.5
8.5+1=9.5
9.5+1.5=11.5
11.5+2.0=13.5
13.5+2.5=16.

trouble is that 9.5+1.5 = 11

perhaps the sequence is
8.0 + 0.5
8.5 + 1 = 9.5
9.5 + 2 = 11.5
11.5 + 4 = 15.5
15.5 + 8 = 23.5

Yes-those are the answers that we thought. The book gives the next two numbers as 6 and 8.5 ???

It's the Bond 10-11 papers, ppaer 12, question 36 and 37 if anyone was wondering!

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 6:53 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8598
very odd... I'm stumped !

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 7:37 pm

Joined: Fri Jul 16, 2010 9:22 am
Posts: 3664
I've recently looked at number sequences with DS2 , and taking into consideration alternate numbers, square numbers etc I can't see how that can be the answer. I think you must have hidden the answer sheet and are now looking at the wrong one. They look like shoe sizes .

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 8:36 pm

Joined: Wed Mar 09, 2011 2:22 pm
Posts: 710
scarlett wrote:
I've recently looked at number sequences with DS2 , and taking into consideration alternate numbers, square numbers etc I can't see how that can be the answer. I think you must have hidden the answer sheet and are now looking at the wrong one. They look like shoe sizes .

LOL-it's definitely the right answer sheet! I'm stumped, too!

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Tue Apr 10, 2012 10:04 pm

Joined: Sun Mar 18, 2012 5:30 pm
Posts: 228
Must be a typo

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 Post subject: Re: Bond Maths 10-11. A mistake or not?Posted: Wed Apr 11, 2012 7:53 am

Joined: Sat Mar 06, 2010 11:39 pm
Posts: 2158
Mine says :

1
1.5
2.5
4

the next two numbers are

6
8.5

which makes more sense.

I wonder if you have a slightly different version of the book but not the matching answer sheet. My book was published in 2007.

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