ISEE Quantitative Comparisons Question 141: Answer and Explanation

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Question: 141

2.

  • A. The quantity in Column A is greater.
  • B. The quantity in Column B is greater.
  • C. The two quantities are equal.
  • D. The relationship cannot be determined from the information given.

Correct Answer: C

Explanation:

The answer is C

Vertical angles are the same, so the unmarked angles in the triangles are the same. Call those angles x. As there are 180° in a triangle, the value of p is 180 - (40 + x), and the value of q is 180 - (40 + x). That is, p and q are the same. Thus, p - q is 0.

As no value is given for the vertical angles, they do not matter, so you can plug in. Assume the angles each measure 70. As there are 180 degrees in a triangle, p = 180 - (40 + 60) = 80. Thus, p - q is 0. Column B is bigger.

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