Cube Size

[kopend]

hi i need to know how much fluid it takes to fill a 250 mm cube

well we need to find out how many 10 ltrs buckets of fluid it takes to fill 60 x 250 mm (sqr) cubes

[jim360]

I hate unit clashes. Anyway, the volume of a cube is given by the length of one side cubed (here 250 x 250 x 250) mm^3, so the volume in sixty cubes is just 60 times that.. Then you can find how many mm^3 there are in a litre, and divide your first answer by this to get the number of litres in the cubes, and divide that by ten to get the number of buckets you need.

[mibn2cweus]

https://www.google.com/search?q=250%5E3+*+60+%2F+10+liters&rlz=1C1CHMI_enUS330US331&;oq=250%5E3+*+60+%2F+10+liters&aqs=chrome..69i57.1508683j0j7&sourceid=chrome&es_sm=93&ie=UTF-8

[mibn2cweus]

D'oh! - https://www.google.com/search?q=250%5E3+*+60+%2F+10+liters&rlz=1C1CHMI_enUS330US331&;oq=250%5E3+*+60+%2F+10+liters&aqs=chrome..69i57.1508683j0j7&sourceid=chrome&es_sm=93&ie=UTF-8#q=250%5E3mm+*+60+%2F+10+liters&safe=off

[kopend]

94 million litres (i have rounded it up a little) sounds an awful lot

am i reading this wrong ???

[Prudie]

Am I reading this wrong (I am a bit hot)?
A cube with sides 250mm has a volume of 15,625,00 mm^3
As 1 litre water = 1000mm^3
So 15,625,000,divided by a 1000 makes
15,625 litres
So 60 of them make 937,500 litres

[Prudie]

Yes there is a nought missing from my volume (should be 15,625,000 ) but that was a typo, answer stands

[jim360]

Yes, mibn's got his brackets in all the wrong places. Try doing the sum for yourself, although I'd like to say that it's one of the most important skills in maths and Science to recognise a wrong answer, so great to see you doubting the answer given. If you do the sum correctly it would come out as a pure number, no units of any kind.

[jim360]

Yes -- a Litre is 1000 cm^3 not 1000 mm^3, the difference making an extra factor of 1000 you need to divide by.

[DrFilth]

if it is homework just tell em your mate has lent you the cube and you have bought a bucket but have not filled it up yet as the water board has been round twice checking for a leak

[kopend]

no its not home work

i have to supply a customer with enough stuff to fill 60 off these 250 mm cube holes

the stuff comes in 10 kilo tubs and im not sure how many tubs they will need

so to keep in nice and simple for me how many tubs should i send them ???

[jim360]

94.

[SeaJayPea]

Depends on how heavy the stuff is. If it has the same specific gravity as water, then 94's the right answer. If it's twice as dense as water, then it could be 188. Need a bit more info. What's the stuff? Or what are the dimensions of a 10kg tub?

[nescio]

SeaJayPea
No it doesn't.
This is a question purely about volume. Mass and density do not come into it.

[SeaJayPea]

"the stuff comes in 10 kilo tubs and im not sure how many tubs they will need"

Kilos seem like mass to me, nescio.

[jim360]

Yes it's important to check whether or not the tubs say "10 kilos" or "10 litres". You are likely anyway to need at least 94 tubs, and probably more. My suggestion would be to work out how much volume of stuff is in each tub, and then get back to us.

[gingejbee]

The TOTAL volume of "fluid" needed is 93.75 litres. That is NOT the number of tubs required.....divide 93.75 by the actual VOLUME of these tubs, to get the number of them required.

[kopend]

just to let you know the tubs are in kilos and are filled with grout

and just to add a little more confusion to the matter

you have to add water 1 : 5


so we probably need about 80 buckets now


and i understand kilos and litres are different things all together

but it give me a good idea how much we will need

so thanks to all of you

[Svejk]

the water bill comes in cubic metres. there are 1,000 litres per cubic metre.

[SeaJayPea]

According to Kopend, they're not 10 litre buckets, they're 10 kg. We need to know how much liquid will fit into each bucket. The dimensions will do.

10 kilos of grout will take up much less space than 10 kilos of water. 10 kilos of water will fill 10 litres.