Tara, mark, john and sophie each ate a different kind of mini-pizza for lunch. After lunch, there was 1/4 of the plain pizza left, 1/3 of the broccolie pizza was left, 1/2 of the mushroom pizza left, and 5/8 of the salami pizza left. Tara ate the most. Mark ate the least. John ate more than sophie. Wgi are the mushroom pizza?