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 Post subject: Question help please..
PostPosted: Thu Sep 22, 2011 8:33 am 
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Joined: Wed Sep 14, 2011 10:35 am
Posts: 75
I know this should be very easy, but I have a mental block whether the answer is 1 or 2- can anyone help?
I'm not sure if the 2nd turn needed to get it back to where it started counts or not...

"A box has a rectangular lid- in how many ways can the lid be turned so that it still fits the box?"

I need to buy the answer book I think...!


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PostPosted: Thu Sep 22, 2011 9:27 am 
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Well it's a bad question because a square is a type of rectangle, and this would give you a different answer from an oblong.

My guess is the question-writer is just thinking of an oblong, and that the answer is 1, but I'm not sure whether they are looking for 1 or 2 as the answer either.

I wouldn't buy the answer book, I'd buy a different book of questions! So much rubbish out there!!


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PostPosted: Sun Sep 25, 2011 5:34 pm 
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On the other hand they might be referring to rotational symmetry, and a rectangle has rotational symmetry of order 2.
Badly worded question there.


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PostPosted: Thu Sep 29, 2011 8:20 pm 
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Joined: Thu May 26, 2011 8:37 pm
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There are lots of badly worded questions out there. My son had school homework today on number patterns & sequencing, asking how many more turns the sequences had to go through before reaching 2000. He said 4 because he took the word 'before' literally and the number 2000 wasn't reached until 5th turn. But I bet he'd have been marked wrong if he hadn't explained his reasoning.


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PostPosted: Tue Oct 18, 2011 9:36 pm 
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Joined: Wed Sep 14, 2011 10:35 am
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Thanks for your replies- I have to admit I didn't realise a square was a type of rectangle when I posted, so it is even more ambiguous than I first thought!

I had thought these various practice papers would be infallible, but I am learning this isn't always the case. The trouble is that DD has taken to occasionally adding a new box on the answer sheet saying "well, I think the exam people got this one wrong so I added my own..."- she had better not do that in the real thing :roll:


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PostPosted: Wed Oct 19, 2011 9:10 am 
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Joined: Mon Jun 18, 2007 2:32 pm
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Location: East Kent
a square is a special form of rectangle but for the age group at which this is aimed I would suggest it means the "normal " rectangle ie sides not all equal length, 4 right angles.

Some questions are very badly worded, I agree.


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