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

Redeem

how do i solve this?

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 265
Joined: Tue Jul 03, 2012 11:04 pm
Followed by:6 members

how do i solve this?

by grandh01 » Sun Aug 05, 2012 5:55 pm
If Jack's and Kate's annual salaried in
1985 were each 10 percent higher
than their respective annual salaries
in 1984, what was Jack's annual
salary in 1984?
(1) The sum of Jack's and Kate's
annual salaries in 1984 was
$50,000.
(2) The sum of Jack's and Kate's
annual salaries in 1985 was
$55,000.
Top
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pm
Location: Milpitas, CA
Thanked: 1854 times
Followed by:523 members
GMAT Score:770

by Anurag@Gurome » Sun Aug 05, 2012 9:20 pm
grandh01 wrote:If Jack's and Kate's annual salaried in
1985 were each 10 percent higher
than their respective annual salaries
in 1984, what was Jack's annual
salary in 1984?
(1) The sum of Jack's and Kate's
annual salaries in 1984 was
$50,000.
(2) The sum of Jack's and Kate's
annual salaries in 1985 was
$55,000.
Let us assume that Jack's and Kate's annual salary in 1984 = J and K respectively.

(1) J + K = $50,000
One equation, two variables; NOT sufficient.

(2) In 1985 Jack's salary = J + 0.1J = 1.1J
In 1985 Kate's salary = K + 0.1K = 1.1K
1.1J + 1.1K = $55,000
1.1(J + K) = 55,000
J + K = 50,000; same as statement 1; NOT sufficient.

Combining (1) and (2), we have the same info; NOT sufficient.

The correct answer is E.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Post new topic Post Reply
• Page 1 of 1