When 6 is multiplied by x, the result is the same as when x

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BTGmoderatorDC: Moderator; Posts: 7187; Joined: Thu Sep 07, 2017 4:43 pmFollowed by: 23 members

by BTGmoderatorDC » Sun Dec 09, 2018 2:29 am

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When 6 is multiplied by x, the result is the same as when x is added to 9. What is the value of x/3 ?

A. 2/5
B. 3/5
C. 6/5
D. 8/5
E. 9/5

OA B

Source: Magoosh

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Source: Beat The GMAT — Problem Solving | Sun Dec 09, 2018 2:29 am

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members; Location: Vancouver, BC; Thanked: 5254 times; GMAT Score:770

by Brent@GMATPrepNow » Sun Dec 09, 2018 9:27 am

BTGmoderatorDC wrote:When 6 is multiplied by x, the result is the same as when x is added to 9. What is the value of x/3 ?

A. 2/5
B. 3/5
C. 6/5
D. 8/5
E. 9/5

When 6 is multiplied by x, the result is the same as when x is added to 9
In other words: 6x = 9 + x
Subtract x from both sides: 5x = 9
Divide both sides by 5 to get: x = 9/5

Answer: E

Cheers,
Brent

Brent Hanneson - Creator of GMATPrepNow.com

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[email protected]: Elite Legendary Member; Posts: 10392; Joined: Sun Jun 23, 2013 6:38 pmFollowed by: 511 members; Location: Palo Alto, CA; Thanked: 2867 times; GMAT Score:800

by [email protected] » Sun Dec 09, 2018 2:07 pm

Hi All,

We're told that when 6 is multiplied by X, the result is the SAME as when X is added to 9. We're asked for the value of X/3. When dealing with GMAT questions, it's important to make sure that you answer the question that is ASKED. Here, we're NOT asked for the value of X, we're asked for the value of X/3. This prompt is essentially just about doing some basic Algebra/Arithmetic.

Based on the first sentence, we can create the following equation:
6(X) = X + 9
6X = X + 9
5X = 9
X = 9/5

Now, we have one more step to answer the question - divide by 3...
(9/5)/3 = 9/15 = 3/5

Final Answer: B

GMAT assassins aren't born, they're made,
Rich

Contact Rich at [email protected]

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Scott@TargetTestPrep: GMAT Instructor; Posts: 8157; Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members; Location: Los Angeles, CA; Thanked: 43 times

by Scott@TargetTestPrep » Fri Mar 15, 2019 5:39 pm

BTGmoderatorDC wrote:When 6 is multiplied by x, the result is the same as when x is added to 9. What is the value of x/3 ?

A. 2/5
B. 3/5
C. 6/5
D. 8/5
E. 9/5

OA B

Source: Magoosh

We can create the equation:

6x = x + 9

5x = 9

x = 9/5

Thus x/3 is (9/5)/3 = 9/15 = 3/5.

Answer: B

Scott Woodbury-Stewart
Founder and CEO
[email protected]

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