# SAT Practice Test Paper 1 Section B Questions and Answers Part 3

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17. The numbers from the number set must be put in the below boxes according to these conditions:

Boxes A, C, and D contain numbers divisible by three.

Box B contains a prime number.

Which number must be in Box E?

(A) 9

(B) 11

(C) 12

(D) 15

(E) 16

18. If, and D and H are midpoints on and respectively, what percentage of the rectangle is shaded?

(A)

(B)

(C)

(D)

(E)

19. Raising by which of the following will give the result ?

(A)

(B)

(C)

(D)

(E)

20. If is a positive integer and and are each prime numbers, then the set of those three numbers is called a prime triplet. How many different prime triplets are there where none of the set is greater than fifty?

(A) 1

(B) 2

(C) 3

(D) 4

(E) None.

21. If a circle has four tangents, each of which is perpendicular to two of the other tangents, then

(A) At most one pair of tangent lines is parallel.

(B) At most two pairs of tangent lines are parallel.

(C) All four tangent lines are parallel.

(D) A square is inscribed in the circle.

(E) One particular diameter could be perpendicular to all four tangent lines.