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The enrollment at High School R has been increasing by 20 students per year. Currently, High School R has 200 students attending. High School T currently has 400 students, but its enrollment is decreasing in size by an average of 30 students per year. If the two schools continue their current enrollment trends over the next few years, how many years will it take the schools to have the same enrollment?
- A 4 years
- B 5 years
- C 10 years
- D 20 years
That's Correct!
It's Wrong!
High School R is increasing its enrollment by 20 students per year, while High School T is decreasing its enrollment by 30 students per year. The difference between the two schools' enrollments is currently 200 students (400 - 200). Since High School R is gaining 20 students per year and High School T is losing 30 students per year, the difference between their enrollments will decrease by 50 students each year (20 + 30). Therefore, it will take 4 years for the two schools to have the same enrollment, as the difference will decrease by 200 students (50 x 4) in that time.
