According to the known conditions: let the bottom area of the bottle be s, then the formula for calculating the volume of the root cylinder is (1):

0.2S= 1-0.05s (solution volume is equal to inverted solution volume).

Calculated s S = 4 (DM 2)

The volume of the solution in the bottle is

V=0.2*4

=0.8L

(2) Let the radius of the bottom surface of the cylinder be r.

V cylinder = π r 2 * 0. 1

Bring solution quantity into computability.

R≈ 1.6 decimeter

A: A little.