Question 1

PSAT-page786-image54

In the incomplete table above, the sum of the three integers in each row, column, and diagonal is the same. If

the numerical values in four of the blocks are as shown, what is the value of w?

Options :

A : –6

B : –5

C : 2

D : 5

E : 8

Answer: C

Question 2

If 11 + 3x is 29, what is 2x?

Options :

A : 2

B : 12

C : 6

D : 36

Answer: B

Question 3

Adapted from Volume Four of The Natural History of Animals: The Animal Life of the World in Its Various

Aspects and Relations by James Richard Ainsworth Davis (1903)

The examples of protective resemblance so far quoted are mostly permanent adaptations to one particular sort

of surrounding. There are, however, numerous animals which possess the power of adjusting their color more

or less rapidly so as to harmonize with a changing environment.

Some of the best known of these cases are found among those mammals and birds that inhabit countries more

or less covered with snow during a part of the year. A good instance is afforded by the Irish or variable hare,

which is chiefly found in Ireland and Scotland. In summer, this looks very much like an ordinary hare, though

rather grayer in tint and smaller in size, but in winter it becomes white with the exception of the black tips to the

ears. Investigations that have been made on the closely allied American hare seem to show that the

phenomenon is due to the growth of new hairs of white hue.

The common stoat is subject to similar color change in the northern parts of its range. In summer it is of a

bright reddish brown color with the exception of the under parts, which are yellowish white, and the end of the

tail, which is black. But in winter, the entire coat, save only the tip of the tail, becomes white, and in that

conditions the animal is known as an ermine. A similar example is afforded by the weasel. The seasonal

change in the vegetarian Irish hare is purely of protective character, but in such an actively carnivorous creature

as a stoat or weasel, it is aggressive as well, rendering the animal inconspicuous to its prey.

Why is the American hare mentioned in the passage?

Options :

A : It is a type of hare that does not change color.

B : It is better at hiding than the Scottish hare

C : It is another name for the Scottish hare.

D : Scientists have studied it to find out how a hare’s fur changes color.

E : It is a predator of the Scottish hare.

Answer: D

Question 4

After three years of extreme inflation, the price of potatoes had increased _________.

Options :

A : surprisingly

B : moderately

C : astronomically

D : astonishingly

E : regularly

Answer: C

Question 5

You need exactly a 1680ft3 aquarium for your fish. At the pet store you see four choices of aquariums, but the volume is not listed. The length, width, and height are listed on the box. Which of the following aquariums would fit your needs?

Options :

A : 12ft × 12ft × 12ft

B : 13ft × 15ft × 16ft

C : 14ft × 20ft × 6ft

D : 15ft × 16ft × 12ft

E : 15ft × 12ft × 12ft

Answer: C

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