Questions about the world of GRE Math from other sources and general math related questions.
yiyang07
Students
 
Posts: 10
Joined: Sat Feb 22, 2014 9:38 am
 

Word problem pg 133

by yiyang07 Sun Mar 16, 2014 2:51 pm

Paraphrasing

Party ate 401 lb of food. No one at more than 2.5lb what is the minimal number that have attended.

401/2.5. 160.4. It must be round up because you need at least 161 people to eat 401lb.

What if the problem changed to

Party has 401 lb of food. No one is going to eat more than 2.5lb. How many people can you invite?

In this case dont you have to round down to 160 because you dont want to run out of food?
tommywallach
Manhattan Prep Staff
 
Posts: 1917
Joined: Thu Mar 31, 2011 11:18 am
 

Re: Word problem pg 133

by tommywallach Mon Mar 17, 2014 10:27 pm

Hey Y,

Well, the problem with your hypothetical is that we now have no basement on the amount people are eating. That means people can eat nothing, so you could invite as many people as you wanted!

-t