Toward the middle of the harvesting season, peaches for canning come in three types, early, late, and extra late, depending on the expected date of ripening. During a certain week, the data to the right were recorded at a fruit delivery station. Complete parts (a) through (d) below. 27
trucks went out carrying early peaches;
49
carried late peaches;
54
carried extra late peaches;
17
carried early and late;
24
carried late and extra late;
10
carried early and extra late;
2
carried all three;
8
carried only figs (no peaches at all).
(a) How many trucks carried only late variety peaches?