both positive

[sanju09]

If a and b are both positive, what percent of b is a?

1. a = 3/11
2. b/a = 20

[spoiler]Source: majortests.com[/spoiler]

[clock60]

1st insuffcient no info about b
2 sufficient, as b/a=20, then (a/b)*100=(1/20)*100=5%
B for me here