Question 1042412
I must use each of the cups so the drum must have a volume of at least,
{{{V[min]=75+200+140=415}}}{{{ml}}}
or if you mean I must fill the same size drum using each cup then,
{{{75=3*5^2}}}
{{{200=2^3*5^2}}}
{{{140=2^2*5*7}}}
So,
{{{LCD=2^3*3*5^2*7=4200}}}{{{ml}}}