Digital SAT Math Practice Test with Answers (Part - 18)

Question 1 :

According to a 2008 study, there were five known subspecies of tigers, including the Amur and Bengal, living in the wild. Scientists estimated that there were a total of 4,000 tigers in the wild. Of these, 450 were Amur tigers and x were Bengal tigers. Which inequality represents all possible numbers of tigers in the wild in 2008 that belonged to the Bengal tiger subspecies?

A)  5x ≥ 4000

B)  x/5 ≥ 4000

C)  1 ≤ x ≤ 3547

D)  3547 < x ≤ 4000

Answer :

Question 2 :

A circle has been divided into three nonoverlapping regions: I, II, and III. The area of region I is 4π square centimeters (cm²), the area of region II is 12π cm², and the area of region III is 16π cm². If a point in the circle is selected at random, what is the probability of selecting a point that does not lie in region II? (Express your answer as a decimal or fraction, not as a percent.)

Answer :

Question 3 :

The figure shown is a right circular cylinder with a radius of r and height of h. A second right circular cylinder (not shown) has a volume that is 392 times as large as the volume of the cylinder shown. Which of the following could represent the radius R, in terms of r, and the height H, in terms of h, of the second cylinder?

A)  R = 8r and H = 7h

B)  R = 8r and H = 49h

C)  R = 49r and H = 8h

D)  R = 7r and H = 8h

Answer :

Question 4 :

The number of sides with length 8 centimeters (cm) is 5 times the number of sides n with length 3 cm. There are 6 sides with length 4 cm. Which equation must be true for the value of n?

A)  5n + 6 = 30

B)  6n + 6 = 30

C)  8n + 3n + 4n = 30

D)  8(5n) + 3n + 4(6) = 30

Answer :

Question 5 :

A right circular cone has a height of 22 centimeters (cm) and a base with a diameter of 6 cm. The volume of this cone is nπ cm³. What is the value of n?

Answer :

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