Question 159808
</pre><font size=4><b>
As per stated: {{{HD[1]=1.5HD[2]}}} -------> condition 1
So, {{{HD[1]+HD[2]=10.5gb}}}, subst. condition 1:
{{{1.5HD[2]+HD[2]=10.5}}}
{{{2.5HD[2]=10.5}}} ------> {{{cross(2.5)HD[2]/cross(2.5)=cross(10.5)4.2/cross(2.5)}}}
{{{HD[2]=4.2gb}}}
Via condition 1: 
{{{HD[1]=1.5*4.2=6.3gb}}}
Besides,
{{{6.3gb+4.2gb=10.5gb}}}
Thank you,
Jojo</pre>