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At a certain university, the ratio of number of teaching

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Senior Manager
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At a certain university, the ratio of number of teaching [#permalink] New post 26 Apr 2006, 01:19
At a certain university, the ratio of number of teaching assistants to the number of students in any course must always be greater than 3/80. At this university what is the maximum number of students possible in a course that has 5 teaching assistants?

130
131
132
133
134
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 [#permalink] New post 26 Apr 2006, 02:03
133... Again whats the source?


Ta/S >2/80

or S/Ta<80/2

or S<80/2*Ta
or S<80/2*5
or S<133.xxx

The next integer is 133!

So 133
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 [#permalink] New post 26 Apr 2006, 02:13
133 simple

3/80 =5/x

x= 133.3333333333333


if we choose 134 than ratio is less so it shud be 133
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  [#permalink] 26 Apr 2006, 02:13
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At a certain university, the ratio of number of teaching

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