Target Test Prep 20% Off Flash Sale is on! Code: FLASH20

Redeem
Target Test Prep
5-Day Free Trial
5-day free, full-access trial TTP

Available with Beat the GMAT members only code

MORE DETAILS
Target Test Prep
Magoosh
Magoosh
Study with Magoosh GMAT prep

Available with Beat the GMAT members only code

MORE DETAILS
Magoosh

Ratio question

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 18
Joined: Fri Apr 03, 2009 3:33 pm

Ratio question

by bronzie35 » Mon Apr 13, 2009 11:21 am
At a university, the ratio of the number of teaching assistants to the number of students in any course must always be greater than 3:80. At the university, what is the maximum number of students possible in a course that has 5 teaching assistants?

answer is 133

Thank you for your help!
Top
Legendary Member
Posts: 683
Joined: Tue Jul 22, 2008 1:58 pm
Location: Dubai
Thanked: 73 times
Followed by:2 members

by mals24 » Mon Apr 13, 2009 1:19 pm
5/x > 3/80

Cross multiply

400/3>x

133.33>x

So maximum value of x can be 133.
Top
Junior | Next Rank: 30 Posts
Posts: 18
Joined: Fri Apr 03, 2009 3:33 pm

by bronzie35 » Tue Apr 14, 2009 8:06 am
UGH! I don't know why I can't remember to set these up in a porportion. Thanks.
Top
Post new topic Post Reply
• Page 1 of 1