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In February Wilson’s earnings were 40 percent of his family’

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In February Wilson’s earnings were 40 percent of his family’ [#permalink] New post 05 Feb 2013, 11:40
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A
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D
E

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Question Stats:

32% (02:03) correct 68% (00:58) wrong based on 99 sessions
In February Wilson’s earnings were 40 percent of his family’s total income. In March Wilson earned 25 percent less than in February. If the rest of his family’s income was the same in both months, then, in March, Wilson’s earnings were approximately what percent of his family’s total income?

(A) 15%

(B) 17%

(C) 24%

(D) 30%

(E) 33%

Source: Gmat Hacks 1800
[Reveal] Spoiler: OA

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Re: In February Wilson's earnings were 40 percent of his family' [#permalink] New post 05 Feb 2013, 21:51
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megafan wrote:
In February Wilson’s earnings were 40 percent of his family’s total income. In March Wilson earned 25 percent less than in February. If the rest of his family’s income was the same in both months, then, in March, Wilson’s earnings were approximately what percent of his family’s total income?
(A) 15%
(B) 17%
(C) 24%
(D) 30%
(E) 33%

Source: Gmat Hacks 1800


Lets suppose the Total Family income in Feb = 100x
Wilson's earning in Feb = 40% of 100x = 40x
Earnings of remaining family in Feb = 100x - 40x = 60x

Wilson's earning in March = 75% of Wilson's Feb earnings = 75% of 40x = 30x
Earnings of remaining family in March = Earnings of remaining family in Feb = 60x

Thus Wilson's earning as % of Total family income in March = 30x/ (30+60)x = 30x/90x = 33.33%

Thus Answer is E

Hope it helps.

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Re: In February Wilson's earnings were 40 percent of his family' [#permalink] New post 05 Feb 2013, 22:00
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In Feb,
Let Wilson's Income be = $40 and rest of family's income be = $60

In March,
Wilson's Income = $30 and rest of family's income = $60

Total Family income = 30 + 60 = 90$

Wilson's income as a percentage of family's income = 30/90 = 33%

Answer is E.
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Re: In February Wilson’s earnings were 40 percent of his family’ [#permalink] New post 06 Feb 2013, 08:09
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Bunuel wrote:
Discussed here: in-may-mrs-lee-s-earnings-were-60-percent-of-the-lee-family-94987.html

Are all Gmat Hacks questions just reworded questions from GMAT Prep?


Pretty much. That's why it's so good. In addition to GMATPrep-like questions, Sackmann's questions are also reworded from OG and GMAT Paper Tests. And there are 1800 of them in total. I did about 1000, on track to complete all of them by next week. Also have to to spend more time reviewing the mistakes I am making.

Anyway, to sum up, it's a really great source. After completing these questions, I should be on track to attempt the ultimatum—GMAT Club Tests!
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Re: In February Wilson’s earnings were 40 percent of his family’ [#permalink] New post 05 Feb 2013, 23:43
Expert's post
megafan wrote:
In February Wilson’s earnings were 40 percent of his family’s total income. In March Wilson earned 25 percent less than in February. If the rest of his family’s income was the same in both months, then, in March, Wilson’s earnings were approximately what percent of his family’s total income?

(A) 15%

(B) 17%

(C) 24%

(D) 30%

(E) 33%

Source: Gmat Hacks 1800


Original question from GMAT Prep:

Quote:
In May Mrs Lee's earnings were 60 percent of the Lee family's total income. In June Mrs Lee earned 20 percent more than in May. If rest of the family's income did not change, then, in June, Mrs Lee's earnings were approximately what percent of the Lee family's total income ?

(A) 64%
(B) 68%
(C) 72%
(D) 76%
(E) 80%


Discussed here: in-may-mrs-lee-s-earnings-were-60-percent-of-the-lee-family-94987.html

Are all Gmat Hacks questions just reworded questions from GMAT Prep?
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Re: In February Wilson’s earnings were 40 percent of his family’ [#permalink] New post 04 May 2014, 18:29
the wording is very confusing.

W(feb)= .4F
W(March) = .75x.4F
therefore percentage = (75x.4F)/2F = .15
Re: In February Wilson’s earnings were 40 percent of his family’   [#permalink] 04 May 2014, 18:29
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