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Author Primary School Maths Question
CorsAsh
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Registered: 19th Apr 02
Location: Munich
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4th Dec 10 at 13:23   View User's Profile U2U Member Reply With Quote
My nephew has this to solve on his maths homework. I'll freely admit that my maths is crap, but none of us can figure it out Someone shed some light?

quote:
There are 26 boys in a class. 21 are right handed. If one of the boys wears glasses, what is the least number of right handed boys in the class that could be wearing glasses?


Huh?
Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
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4th Dec 10 at 13:25   View User's Profile U2U Member Reply With Quote
Not a fan, sorry.
Rich H
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Registered: 26th Oct 05
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4th Dec 10 at 13:25   View User's Profile U2U Member Reply With Quote
My maths is shocking, but surely it's 1?
saj_123
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4th Dec 10 at 13:26   View User's Profile U2U Member Reply With Quote
1?
Welsh Dan
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4th Dec 10 at 13:29   View User's Profile U2U Member Reply With Quote
It looks like the question is written down incorrectly. I'm going to go with '2' as the answer, on the basis that its not been typed out correctly
CorsAsh
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4th Dec 10 at 13:29   View User's Profile U2U Member Reply With Quote
This is what I thought, but surely it can't be that easy? There's nothing to work out

I think the question has been written wrongly.
Welsh Dan
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4th Dec 10 at 13:31   View User's Profile U2U Member Reply With Quote
It is written down incorrectly. It supposed to be 10.

Googled it

[Edited on 04-12-2010 by Welsh Dan]
Welsh Dan
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4th Dec 10 at 13:31   View User's Profile U2U Member Reply With Quote
And the answer is 5.
Rich H
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4th Dec 10 at 13:33   View User's Profile U2U Member Reply With Quote
That makes more sense
Ian
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4th Dec 10 at 13:34   View Garage View User's Profile U2U Member Reply With Quote
The answer to that one is zero.

If you increase the number of boys wearing glasses, you then need to offset that against the number of left handed boys until you get a positive number.

Basically number of boys wearing glasses minus 5 with a lower bound of zero.
Mike
Organiser: North West and North Wales
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Registered: 20th May 06
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4th Dec 10 at 13:34   View Garage View User's Profile U2U Member Reply With Quote
So basically,your nephew's answer should be FAIL!
Ian
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4th Dec 10 at 13:35   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Rich H
That makes more sense
Makes perfect sense as-is, if you have one boy wearing glasses and potentially 5 left handed boys, the number of right handed boys could be zero at it lowest point.

[Edited on 04-12-2010 by Ian]
Ian
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4th Dec 10 at 13:36   View Garage View User's Profile U2U Member Reply With Quote
The teacher is allowed to alter the question btw, there are no rules against that. In fact I would probably do the same and discipline everyone who Googled the question and answered with the number 5.

Although that becomes less of a maths question and more of a psychology one. Depends what you're assessing

[Edited on 04-12-2010 by Ian]
Rich H
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4th Dec 10 at 13:37   View User's Profile U2U Member Reply With Quote
Told you I fail at maths
Hammer
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4th Dec 10 at 13:38   View User's Profile U2U Member Reply With Quote
Surely the answer is just zero?

Bit of a trick question and not a lot to do with maths
CorsAsh
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4th Dec 10 at 13:41   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Rich H
That makes more sense
SVM 286
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4th Dec 10 at 19:24   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by CorsAsh
My nephew has this to solve on his maths homework. I'll freely admit that my maths is crap, but none of us can figure it out Someone shed some light?

quote:
There are 26 boys in a class. 21 are right handed. If one of the boys wears glasses, what is the least number of right handed boys in the class that could be wearing glasses?


Huh?


I'd say...

A) One

and

B) Whoever worded the question was drunk or stupid or both or similar when they did so.

X
Marc
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4th Dec 10 at 19:30   View User's Profile U2U Member Reply With Quote
I'm going for 1.
AndyKent
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4th Dec 10 at 19:34   View User's Profile U2U Member Reply With Quote
Zero, must be. Ians explanation is right.
Brett
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4th Dec 10 at 19:36   View Garage View User's Profile U2U Member Reply With Quote
Zero
Russ
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4th Dec 10 at 19:40   View User's Profile U2U Member Reply With Quote
question isn't very well written.

the answer is 0, as it doesn't specify that the one child with glasses is right handed, although it does read that way, because (as i said) question is poorly written
kennySRi
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4th Dec 10 at 19:46   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Hammer
Surely the answer is just zero?

Bit of a trick question and not a lot to do with maths


This. No idea what the rest of the question is going on about as it's nothing to do with the answer.
sand-eel
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4th Dec 10 at 20:10   View User's Profile U2U Member Reply With Quote
Answer = 1
Because there is already 1 person wearing them...easy.
Kimi-01
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4th Dec 10 at 20:16   View User's Profile U2U Member Reply With Quote
@ the people who think the answer is 1.
sand-eel
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4th Dec 10 at 20:19   View User's Profile U2U Member Reply With Quote
Yeah but surely because it says "the least that could be wearing glasses" that means 1 as you can't really have 0 people could wear glasses?

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