BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

A certain recipe calls for 2 cups of sugar and 3 1/2 cups of

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16207
Joined: Mon Dec 08, 2008 6:26 pm
Location: Vancouver, BC
Thanked: 5254 times
Followed by:1268 members
GMAT Score:770

by Brent@GMATPrepNow » Mon Nov 26, 2018 4:07 pm
Judging from the OA, I've added some key text below
BTGmoderatorLU wrote:
A certain recipe calls for 2 cups of sugar and 3 1/2 cups of flour. What is the ratio of sugar to flour in this recipe?

A. 3/10
B. 2/5
C. 4/7
D. 4/5
E. 6/7

The OA is C
A certain recipe calls for 2 cups of sugar and 3 1/2 cups of flour
So sugar/flour = 2/3.5
Check answer choices . . . . not there.

Looks like we need to create a ratio that's EQUIVALENT to 2/3.5
Multiply top and bottom by 2 to get the EQUIVALENT ratio of 4/7
Check answer choices . . . . the answer is C

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top

GMAT/MBA Expert

User avatar
Elite Legendary Member
Posts: 10392
Joined: Sun Jun 23, 2013 6:38 pm
Location: Palo Alto, CA
Thanked: 2867 times
Followed by:511 members
GMAT Score:800

by [email protected] » Mon Nov 26, 2018 7:10 pm
Hi All,

We're told that a certain recipe calls for 2 cups of sugar and 3 1/2 cups of flour. We're asked for the ratio of sugar to flour in this recipe. This question can be solved in a couple of different ways. The answer choices are sufficiently 'spread out' that we can actually answer this question with a little math and some logic.

IF... the ratio was 2 cups sugar to 4 cups flour, then the ratio would be 1:2
However, it's NOT 4 cups of flour - it's a bit less (3.5 cups), thus the ratio is a little bit bigger than 1/2 (remember: ratios increase if the first number gets bigger OR the second number gets smaller). There's only one answer that's a LITTLE more than 1/2 (two of the answers are a LOT bigger than 1/2)...

Final Answer: C

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
Image
Top

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 8086
Joined: Sat Apr 25, 2015 10:56 am
Location: Los Angeles, CA
Thanked: 43 times
Followed by:29 members

by Scott@TargetTestPrep » Wed Mar 27, 2019 6:08 pm
BTGmoderatorLU wrote:Source: Princeton Review

A certain recipe calls for 2 cups of sugar and 3 1/2 cups of flour. What is the ratio of flour in this recipe?

A. 3/10
B. 2/5
C. 4/7
D. 4/5
E. 6/7

The OA is C
2/(3.5) = 4/7

Answer: C

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage
Top
Post new topic Post Reply
• Page 1 of 1