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Maths help please


AnonyMouse_3139

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That passed a very happy, if wasteful 10 minutes, thanks Rea!

 

Google has got very smart at doing instant calculations actually within the search bar. Try it by typing in 45 * 34 and it should give you an immediate answer.

 

However it's not smart enough to give you the result if you type in 'what percentage of 69.95 is 16.6', so you have to know the formula. Once Matt had reminded me that this would be 'smaller number divided by bigger number multiplied by 100' I was able to type in '16.6 / 69.95 * 100' and instantly, without even pressing return, google very cleverly gives you the answer.

 

However, that relies on you knowing the formula. There's an even more clever scientific search engine called Wolfram Alpha. If you have a moment go there and type in 'what percentage of 69.95 is 16.6' and it gives you a rather lovely and comprehensive reply.

 

Ah well - back to work I guess...

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I always approach percentages as a logic puzzle.

 

1% of £69.95 is easy to work out. It's £0.6995

 

Now you need to know how many of those there are in £16.60.

 

So you know the sum you need to do is 16.60 divided by 0.6995

 

Put that into your calculator and you get 23.73.

 

So £16.60 is 23.73% of £69.95

 

Does that sound about right? If so you've probably calculated it correctly. If the answer is ridiculously wrong try again.

Edited by Upsy Daisy
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I had to read Steve's explanation twice, the second time slowly so it could sink in. I know I did this at school but I remember one lesson doing fractions in primary at which my eyes and brain could only see scribble. Not much has changed to be honest!

I wouldnt have known 1% was that either :huh:

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Thanks, but Steve used his brain and I went to my default action of consulting the internet. Actually it is easy when you know how now you chaps have explained. Work out the 1% by dividing by 100, so move the decimal point two places, and the rest follows.

 

Lah lah lah lah lah - nope not going in - not listening - don't like maths! :ph34r:xD :lol: xD

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That's where team work comes in, everyone has their strength. I can do the stories and arty stuff but I flounder with anything like maths or science especially physics!! In a class of around 30 our physics teacher read out the results of a test, highest to lowest. Lee 89%, Neal 88%, Richard 86%....Jayne 17% Andrea 16%...I do believe there was a 14% in there too, so not quite bottom.

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