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.
A mixture weighs 7.8 grams. It consists of ingredients X, Y, and Z in
[#permalink]
02 Sep 2021, 03:57
02 Sep 2021, 03:57
Expert Reply
1
Bookmarks
00:00
Question Stats:
99% (01:10) correct
0% (00:00) wrong based on 28 sessions
Hide Show timer Statistics
A mixture weighs 7.8 grams. It consists of ingredients X, Y, and Z in the ratio 2:5:6, respectively, by weight. How many fewer grams of ingredient X than ingredient Z are in the mixture?
(A) 0.8
(B) 1.2
(C) 1.8
(D) 2.4
(E) 3.0
(A) 0.8
(B) 1.2
(C) 1.8
(D) 2.4
(E) 3.0
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: A mixture weighs 7.8 grams. It consists of ingredients X, Y, and Z in
[#permalink]
02 Sep 2021, 07:21
02 Sep 2021, 07:21
1
Carcass wrote:
A mixture weighs 7.8 grams. It consists of ingredients X, Y, and Z in the ratio 2:5:6, respectively, by weight. How many fewer grams of ingredient X than ingredient Z are in the mixture?
(A) 0.8
(B) 1.2
(C) 1.8
(D) 2.4
(E) 3.0
(A) 0.8
(B) 1.2
(C) 1.8
(D) 2.4
(E) 3.0
A mixture weighs 7.8 grams. It consists of ingredients X, Y, and Z in the ratio 2:5:6
2 + 5 + 6 = 13
So we can say that:
2/13 of the mixture is ingredient X
5/13 of the mixture is ingredient Y
6/13 of the mixture is ingredient Z
How many fewer grams of ingredient X than ingredient Z are in the mixture?
Weight of ingredient X in the mixture = 2/13 of 7.8 grams = (2/13)(7.8) = 1.2 grams
Weight of ingredient Z in the mixture = 6/13 of 7.8 grams = (6/13)(7.8) = 3.6 grams
3.6 - 1.2 = 2.4
Answer: D
RELATED VIDEO
Re: A mixture weighs 7.8 grams. It consists of ingredients X, Y, and Z in
[#permalink]
14 Jul 2024, 16:08
14 Jul 2024, 16:08
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
