MCAS 1998, 10th Grade Math, Questions 13 to 16

Question #13

One man and two women are seated randomly in a row. What is the mathematical probability that the two women are seated together?

A. 1/3

B. 1/2

C. 2/3

D. 5/6

Question #14

In a bowling tournament, there were 2 scores in the 200s, 6 scores in the 180s, 5 scores in the 160s, 5 in the 150s, and 3 in the 130s. The median score would be in the

A. 150s.

B. 160s.

C. 180s.

D. There is not enough information given.

Question #15

If AD = BD = BC and the measure of angle ADB is twice the measure of angle BDC, what is the measure of angle ABC?

A. 70°

B. 80°

C. 90°

D. 100°

Question #16

Which of the following could be the next step in solving the equation 3(x + 2) = 3 — (x + 1)?

A. 3x + 6 = 3 — x — 1

B. 3x + 2 = 3 — x — 1

C. 3x + 6 = 3 — x + 1

D. 3x + 5 = 3 — x + 1

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