Question 1110484
x of the small
y of the medium
z of the large


{{{system(x+y+z=27,10x+14y+20z=424,95x+115y+150z=3400)}}}


{{{system(x+y+z=27,5x+7y+10z=212,19x+23y+30z=680)}}}


{{{system(x+y+z=27,0+2y+5z=77,0+4y+11z=167)}}}


Subtract 2 times this second equation from the third equation:
{{{highlight(z=13)}}}


You can use the last system to find y and x.

{{{highlight(y=6)}}}
-
{{{highlight(x=8)}}}