G
This one calls for a diagram. You don’t have to worry about the different types of parts Tanya had; the important pieces of
information are that she had seven parts total, one part in the first play and at most two in each succeeding play.
Play: 1 2 3 4
P PP PP PP
As you can see, if she did have the maximum of two parts per play after play 1, she could have had all seven parts in as few
as four plays, choice (G).
18.
C
There are quite a few reasons that someone could be especially susceptible to the flu, but Jen concludes that Lisa must have
forgotten to take her vitamin C. In order for Jen to be so sure, she would have to know that there is no other way Lisa could
have caught the flu. This makes (C) correct. (D) is tempting but wrong. If all that Jen knows is that Lisa has caught the flu and
that she often forgets to take her vitamin C, the most Jen could conclude is that Lisa may have forgotten to take her vitamin C
and may have caught the flu for this reason. This isn’t good enough for the conclusion in the question stem to be valid.
19.
J
Let’s go through the answer choices. (F) is tempting but wrong. You cannot be absolutely sure that the person playing the first
violin part is considered the best violinist in the orchestra; maybe someone even better on the violin always plays another
instrument when playing with the orchestra. There’s no reason to think that Carl and Sonya are “equally talented,” so (G) is
incorrect. (H) is out because you don’t know how often Joe misses rehearsal. (J) doesn’t make sense because Joe may be
there to play the first part when Carl misses the rehearsal. (K) is the correct choice: Joe always plays the first part when he
attends rehearsal, regardless of who else is there.
20.
C
Passage I is a science passage about coral reefs. Paragraph 1 introduces the main idea, which is a focus on “the complex web
of interrelationships between plants and animals.” Paragraph 2 describes how reefs are formed out of the skeletons of the
reefs’ two main inhabitants, the stony coral and the green alga. Paragraph 3 describes several theories about how coral reefs
are transformed into islands.
Which choice describes the whole passage? Skim the paragraph topics—paragraph 2 is about the animals involved in reef
formation. And paragraph 3 describes how reefs become islands. Choice (C) summarizes the passage best—since both
biological and geological issues are discussed. The wrong choices are too narrow—animal life (A) is only discussed in
paragraph 2; physical beauty (D) only crops up in paragraph 1; and wave erosion (B) and geological origins (E) only appear
in paragraph 3.
21.
H
Paragraph 2 is the only place where the stony coral is discussed. Lines 13–14 indicate that the stony coral’s skeleton is
22.
