SOLUTION: There are a total of 1200 students at a school. The ratio of teacher to students 1:30. How many teachers are there at the school? Two fifths of the students own personal comput

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Question 1053327: There are a total of 1200 students at a school. The ratio of teacher to students 1:30.
How many teachers are there at the school?
Two fifths of the students own personal computers, how many students do not own personal computers?
Thirty percent of the students who own personal computers, also own play stations. What fraction of the students in the school own play stations? Express in lowest terms.
Email:bnaquee@ymail.com
Thanks

Found 2 solutions by addingup, MathTherapy:
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
how many groups of 30 are there in 1200? Each of those groups gets a teacher:
1200/3 = 400 There are 400 teachers.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

There are a total of 1200 students at a school. The ratio of teacher to students 1:30.
How many teachers are there at the school?
Two fifths of the students own personal computers, how many students do not own personal computers?
Thirty percent of the students who own personal computers, also own play stations. What fraction of the students in the school own play stations? Express in lowest terms.
Email:bnaquee@ymail.com
Thanks
highlight_green%28matrix%281%2C2%2C+40%2C+teachers%29%29, not 400. Ridiculous!!