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Please explain
http://www2.elevenplusexams.co.uk/forum/11plus/viewtopic.php?f=2&t=58151
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Author:  Parent 1 [ Sun Jun 09, 2019 12:44 pm ]
Post subject:  Please explain

Thirty-six posts were spaced evenly along a road that was 1.575km long.What was the distance in metres between each pair of posts?

Author:  hermanmunster [ Sun Jun 09, 2019 12:53 pm ]
Post subject:  Re: Please explain

what have you tried so far?

Author:  Parent 1 [ Sun Jun 09, 2019 9:45 pm ]
Post subject:  Re: Please explain

I have divided 1575m with 36 for 43.75
But the answer is 45

Author:  hermanmunster [ Sun Jun 09, 2019 9:48 pm ]
Post subject:  Re: Please explain

might be worth you drawing it out to work out how many gaps there are - remember that with a fence there are always one fewer boards than there are posts.

Author:  Parent 1 [ Sun Jun 09, 2019 9:51 pm ]
Post subject:  Re: Please explain

Just got it now the last post won’t be counted to mark the distance so there will be 35 posts so 1575/35=45

Author:  hermanmunster [ Sun Jun 09, 2019 10:03 pm ]
Post subject:  Re: Please explain

:D

Author:  Yes [ Mon Jun 10, 2019 10:08 am ]
Post subject:  Re: Please explain

Diagrams are our best friends!

Author:  Surferfish [ Mon Jun 10, 2019 10:28 am ]
Post subject:  Re: Please explain

Agree that diagrams are useful in questions like this.

Just a tip though, it is not necessary to draw out all 36 posts, which might be a bit laborious. Drawing just 3 or 4 posts should be enough to prove the point that there are 1 less panels than posts.

Author:  yoyo123 [ Mon Jun 10, 2019 12:32 pm ]
Post subject:  Re: Please explain

I love a nice diagram!

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