maths puzzle?...........

TheDogsNutts

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maths puzzle?

This riddle must be done IN YOUR HEAD and NOT using paper and a pen. Try it!

Take 1000 and add 40 to it. Now add another 1000.
Now add 30. And another 1000.
Now add 20. Now add another 1000. Now add 10.
What is the total?
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....
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....
....
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Did you get 5000? Way to go... most of us do, join the crowd!
But you know what? We're all wrong!
The correct answer is actually 4100. Don't believe it?
Check it with a calculator or on paper!
The brain sure knows how to play little tricks on us, doesn't it?
 

pil196

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my miss thinks shes good at maths now im going to have some fun nice one m8
 

pil196

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lol every one came up with 5000 im told its to do with the 40
 

clive58

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Done that easy, try this:
If 1/2x +1/2(1/2x + 1/2(1/2x +1/2(1/2x + ... = y,
then x = ?
It can be done in your head when you want a headache lol.
Clive.
 

pil196

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The-Dogs-Nutts said:
maths puzzle?
This riddle must be done IN YOUR HEAD and NOT using paper and a pen. Try it!
Take 1000 and add 40 to it. Now add another 1000.
Now add 30. And another 1000.
Now add 20. Now add another 1000. Now add 10.
What is the total?
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
.....
....
....
....
Did you get 5000? Way to go... most of us do, join the crowd!
But you know what? We're all wrong!
The correct answer is actually 4100. Don't believe it?
Check it with a calculator or on paper!
The brain sure knows how to play little tricks on us, doesn't it?

as this one is still running over in my mind i past it on to a lad i know who has dificulty reading and you know what he got it straght away as he was only looking at the numbers mad how words make your mind wonder off.
 

yashsmash

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clive58 said:
Done that easy, try this:
If 1/2x +1/2(1/2x + 1/2(1/2x +1/2(1/2x + ... = y,
then x = ?
It can be done in your head when you want a headache lol.
Clive.
Clive you sure thats right?
 

clive58

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Its a question yashsmash, if you haven't understood the question then you are far from the answer.

Hint x and y equall the same number but what is it and show your working out.
 

MA

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that was nang (nang = oxfordshire slang for cool)
 

MA

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Sameira said:
I gt 4100 straight away :)
really?
 
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