More Math Help Needed Please.

ferlew | 18:54 Sat 01st Sep 2018 | Education

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I'm struggling to work out the GSM of some card I have promised someone.I weighed 10 sheets to get a more accurate reading, and that was 160gr.
One sheet is 210mm by 300mm, which I think converts to 0.06 of a square metre, and weighs 16 gr.
How on earth can I work out the grams per square metre please.
Totally lost it here this afternoon trying to get the correct answer.
Grateful for any help, thanks.

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fiction-factory

=253.97 g/sq m. Call it 254?

19:00 Sat 01st Sep 2018

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ferlew

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PS.... just weighed 16 sheets of card, 256gr, will be passing on this info to all my crafting friend :)

I have moved this thread into the category "Education".

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