GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Oil veniger and water are mixed...
[#permalink]
18 Dec 2021, 03:39
18 Dec 2021, 03:39
2
Bookmarks
00:00
Question Stats:
50% (02:13) correct
50% (01:50) wrong based on 4 sessions
Hide Show timer Statistics
Oil, vinegar, and water are mixed in a 3 to 2 to 1 ratio to make salad dressing. If Larry has 8 cups of oil, 7 cups of vinegar, and access to any amount of water, what is the maximum number of cups of salad dressing he can make with the ingredients he has available, if fractional cup measurements are possible?
(A) 12
(B) 13
(C) 14
(D) 15
(E) 16
(A) 12
(B) 13
(C) 14
(D) 15
(E) 16
Retired Moderator
Joined: 09 Nov 2021
Status:GRE Tutor London and Online
Affiliations: Private GMAT/GRE Tutor London
Posts: 76
Given Kudos: 6
Re: Oil veniger and water are mixed...
[#permalink]
18 Dec 2021, 06:10
18 Dec 2021, 06:10
1
If we have oil:vinegar:water as 3x:2x:1x, then we have 6x total parts per cup.
Let's see where we are limited.
1/2 of these parts (3x/6x) are oil: therefore, half a cup of each cup of dressing is oil. The number of 1/2-cup units in 8 cups is of course 8 * 2 = 16 potential cups of dressing.
Now we need to see whether we are limited any lower by vinegar:
1/3 of these parts (2x/6x) are vinegar: therefore, one-third of each cup of dressing is vinegar. By the same logic, we have 7*3 = 21 potential cups of dressing. This limits higher, and we are bound by the lower number, 16.
Answer E.
Let's see where we are limited.
1/2 of these parts (3x/6x) are oil: therefore, half a cup of each cup of dressing is oil. The number of 1/2-cup units in 8 cups is of course 8 * 2 = 16 potential cups of dressing.
Now we need to see whether we are limited any lower by vinegar:
1/3 of these parts (2x/6x) are vinegar: therefore, one-third of each cup of dressing is vinegar. By the same logic, we have 7*3 = 21 potential cups of dressing. This limits higher, and we are bound by the lower number, 16.
Answer E.
gmatclubot
Re: Oil veniger and water are mixed... [#permalink]
18 Dec 2021, 06:10
Moderators:
