To cut costs while maintaining the quality of education, one of the board members of a school district proposed to have the number of teachers vary directly as the number of students in a classroom. She proposed 12 teachers to teach a student body of 228 students. How many teachers would be needed if the school grows to 399 students?
19 teachers
21 teachers
20 teachers
20.9 teachers
Given that a new fuel-efficient cars can drive 55 miles per gallon, how far can a car drive with nine gallons?
6.11 miles
455 miles
495 miles<--my answer
540 miles

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@apoorvk

If 12 teachers is to 228 students, then how many students per teacher?

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