Question 1205008
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A tin 10cm long, 7.5cm wide and 2cm deep holds 120g of rice when full. 
If 1kg of rice fills a tin 10cm square, find the height of this tin.
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<pre>
The volume of the 1-st tin is  {{{V[1]}}} = 10*7.5*2 = 150 cm^3.


The volume of the 2-nd tin is  {{{V[2]}}} = 10*h cm^3;  the height "h" is unknown.


The proportion is

    {{{V[1]/V[2]}}} = {{{120/1000}}}    <<<---===  {{{volume/volume}}} = {{{grams/grams}}}.

or

    {{{150/(10h)}}} = {{{12/100}}}.


From the proportion, find h

    h = {{{(150*100)/(10*12)}}} = 125 cm.    <U>ANSWER</U>
</pre>

Solved.