Please explain
Posted: Sun Jun 09, 2019 1:44 pm
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?
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Please explain
https://www.elevenplusexams.co.uk/forum/11plus/viewtopic.php?t=58151
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Re: Please explain
Posted: Sun Jun 09, 2019 1:53 pm
what have you tried so far?
Re: Please explain
Posted: Sun Jun 09, 2019 10:45 pm
I have divided 1575m with 36 for 43.75
But the answer is 45
But the answer is 45
Re: Please explain
Posted: Sun Jun 09, 2019 10:48 pm
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.
Re: Please explain
Posted: Sun Jun 09, 2019 10:51 pm
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
Re: Please explain
Posted: Sun Jun 09, 2019 11:03 pm
Re: Please explain
Posted: Mon Jun 10, 2019 11:08 am
Diagrams are our best friends!
Re: Please explain
Posted: Mon Jun 10, 2019 11:28 am
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.
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.
Re: Please explain
Posted: Mon Jun 10, 2019 1:32 pm
I love a nice diagram!