Ok so P(B/A) is equal to Event B = 3/16 divided by Event A = 5/16
Event B = 3/16 Since P(not getting blue) = 12/16 = 3/4 times P(getting blue on second turn) = 4/15
4/15 times 3/4 = 12/60 = 1/5
Now we divide 1/5 by 5/16
1/5 / 5/16 =
1/5 x 16/5 =
16/25=
Hope this helps!