GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 07 Dec 2019, 03:03

### GMAT 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

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# A contractor mixes cement, water, sand, and gravel in a ratio of 1:3:4

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 59587
A contractor mixes cement, water, sand, and gravel in a ratio of 1:3:4  [#permalink]

### Show Tags

19 Feb 2019, 23:41
00:00

Difficulty:

15% (low)

Question Stats:

80% (01:05) correct 20% (00:57) wrong based on 70 sessions

### HideShow timer Statistics

A contractor mixes cement, water, sand, and gravel in a ratio of 1 : 3 : 4 : 2 by weight to make concrete. How many pounds of sand are needed to make 28 pounds of concrete?

A. 2.8
B. 5.6
C. 8.4
D. 11.2
E. 13.6

_________________
Manager
Joined: 13 Oct 2018
Posts: 85
Location: India
GPA: 3.1
WE: Information Technology (Computer Software)
Re: A contractor mixes cement, water, sand, and gravel in a ratio of 1:3:4  [#permalink]

### Show Tags

19 Feb 2019, 23:58

required sand = 28*4/10 = 11.2

Posted from my mobile device
GMAT Club Legend
Joined: 18 Aug 2017
Posts: 5433
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: A contractor mixes cement, water, sand, and gravel in a ratio of 1:3:4  [#permalink]

### Show Tags

20 Feb 2019, 02:12
Bunuel wrote:
A contractor mixes cement, water, sand, and gravel in a ratio of 1 : 3 : 4 : 2 by weight to make concrete. How many pounds of sand are needed to make 28 pounds of concrete?

A. 2.8
B. 5.6
C. 8.4
D. 11.2
E. 13.6

total = 10
so sand 4/10 ; .4
.4 * 28 = 11.2
IMO D
Re: A contractor mixes cement, water, sand, and gravel in a ratio of 1:3:4   [#permalink] 20 Feb 2019, 02:12
Display posts from previous: Sort by