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ddm: Master | Next Rank: 500 Posts; Posts: 162; Joined: Mon Jul 28, 2008 8:33 pm; Location: San Jose,CA; Thanked: 1 times

by ddm » Wed Jul 30, 2008 11:20 am

According to the directions on a can of frozen orange juice concentrate, i can of concentrate is to be mixed with 3 cans of water to make orange juice.how many 12 ounce cans of concentrate are required to prepare 200 6 ounce serving of orange juice?

A. 25
B. 34
C. 50
D. 67
E. 100

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Source: Beat The GMAT — Problem Solving | Wed Jul 30, 2008 11:20 am

parallel_chase: Legendary Member; Posts: 1153; Joined: Wed Jun 20, 2007 6:21 amFollowed by: 2 members; Thanked: 146 times

by parallel_chase » Wed Jul 30, 2008 11:59 am

This is a ratio proportion question.

The ratio of concentrate to water in one glass of orange juice is 1:3.

Therefore with 12 ounces of concentrate one can make 48 ounces or 8 glasses of orange juice.

Therefore for 200 glasses of orange juice you need = 200*12/8 ounces of concentrate.

You need 300 ounces of concentrate. Each can of concentrate is of 12 ounces each.

Therefore you need 300/12 = 25 cans of concentrate.

Whats the OA?

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ddm: Master | Next Rank: 500 Posts; Posts: 162; Joined: Mon Jul 28, 2008 8:33 pm; Location: San Jose,CA; Thanked: 1 times

by ddm » Wed Jul 30, 2008 12:10 pm

hey thanks..
the answer was 25..i guess i was goofing up somewhere so was getting the wrong answer

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aj5105: Legendary Member; Posts: 1169; Joined: Sun Jul 06, 2008 2:34 amFollowed by: 1 member; Thanked: 25 times

by aj5105 » Sun Oct 05, 2008 6:51 am

A (25) is the answer.

Last edited by aj5105 on Thu Dec 25, 2008 1:05 am, edited 1 time in total.

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stop@800: Legendary Member; Posts: 871; Joined: Wed Aug 13, 2008 7:48 am; Thanked: 48 times

by stop@800 » Mon Oct 06, 2008 11:26 pm

aj5105 wrote:Ratio Multiplier Total
C 1 25 25

W 3 25 75
------------------------------------------------
Total 4 25 100 glasses 12 ounce=200 glasses of 6 ounce

Hence 25 is the answer.

I can not understand
from where these glasses are coming into picture?

www.interrogationpoint.com

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