Answer:
2/3
Step-by-step explanation:
solve volume formula for r and then use v1 and v2 from the ratio to find r1 and r2
v = 4/3 Pi r**3
(3/4 v) / Pi = r**3
r = (3v/4Pi)**1/3
Then
r1 = (3*8/4pi)**3
= (6/Pi)**1/3
= 1.24
r2 = (3*27/4Pi)**3
= (81/4Pi)**3
= (6.45)**3
= 1.8
Then
r1/r2 = 1.24/1.8 = .6666666 or 2/3
