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A batch of cookies was divided among three tins: 2/3 of all [#permalink]

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17 Oct 2005, 16:28

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A batch of cookies was divided among three tins: 2/3 of all the cookies were placed in either the blue tin or the green tin, and the rest were placed in the red tin. If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins were placed in the green tin?

Himalaya, read this part alone - i think it made sense
"If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins " -> green+red!

I'm still a little confused. When it says "What fraction of the cookies that were placed in the other tins...." why shouldn't the blue tin be counted towards the "other" tins?

(I hope the real GMAT does not have convoluted wording questions such as this one)

I hate to beat a dead horse - but I'll do it any way. Draw a table for these questions and you'll be less confused - I'm a visual type of test taker - you probably haven't notice.

A batch of cookies was divided among three tins: 2/3 of all the cookies were placed in either the blue tin or the green tin, and the rest were placed in the red tin. If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins were placed in the green tin?

if we say the cookies are in either the blue tin or the green tin, it means that they can only be in one of them, not both or not shared. So how come you can get 1/4 later in the blue tin ? i don't get this one

2/3 are in either blue or green tin, and 1/4 are actually in blue tin, with the rest goes to the green tin. Say toal is 12, then 8 goes to blue or green. We later know that 3 actually goes to blue tin, so 8-3=5 got to go into the green tin.
_________________

Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.

A batch of cookies was divided among three tins: 2/3 of all the cookies were placed in either the blue tin or the green tin, and the rest were placed in the red tin. If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins were placed in the green tin?

if we say the cookies are in either the blue tin or the green tin, it means that they can only be in one of them, not both or not shared. So how come you can get 1/4 later in the blue tin ? i don't get this one

The question said 2/3 of all the cookies were placed in either the blue tin or the green tin. Not ALL the cookies were placed in blue or green.

Also, it was stated in the first sentence that "A batch of cookies was divided among 3 tins...". Hope this helps!