A fifth of 20/1 is 4/1 (20 🍏 divided by 5) so the place part of the bet is paid as 5 at 4/1 = 25 (5 x 🍏 4 = 20 plus your 5 stake back). WIN plus PLACE = 105 plus 25 = 130. If your horse 🍏 finished 2nd, 3rd, 4th, 5th or 6th then you just get the place returns of 25, while the win part 🍏 of your bet is lost.