45 cubic centimeters =45* 1000 cubic millimeters = 45,000 cubic millimeters? Outlet radius = 6/2 = 3mm.
The daily volume of toothpaste =3*3*3*20=540 cubic millimeters.
So 45000/450≈83 days.
Suppose a table is 1 yuan, then Miss Li has 40 yuan and a chair is 40/60=2/3 yuan.
One set is 1+2/3=5/3 yuan.
So what? 40/(5/3)=24 sets
Instant a