Elizabeth brought a box of donuts to share. There
are two-dozen (24) donuts in the box, all identical in size,
shape, and color. Three are jelly-filled, 5 are lemon-filled,
and 16 are custard-filled. You randomly select one donut,
eat it, and select another donut. Find the probability of
selecting a custard-filled donut followed by a lemon-filled
donut.
(Type an integer or a simplified fraction.)