Question

In order to be invited to tutoring or extension activities, a student's performance must be at least 20 points higher or lower than an average score. If the average score is 105, which inequality represents p, the scores for students who are eligible for tutoring or extension activities?

a. 85 < p < 125
b. 85 ≤ p ≤ 125
c. p < 85 or p > 125
d. p ≤ 85 or p ≥ 125

Answer 1

d

Explanation:

Answer 2

The correct answer is D. Since the average score is 105, and the boundary limits are +- 20 points, then the needed score for tutorial would have to be less than or equal to 85, and for extension activities, it would have to be greater than or equal to 125. Mathematically, it is shown as: p ≤ 85 or p ≥ 125