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A certain business has its workers wear either red or blue s

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amitmathew
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A certain business has its workers wear either red or blue s [#permalink] New post   30 Oct 2018, 07:52
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41% (00:59) correct 58% (01:17) wrong based on 12 sessions

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A certain business has its workers wear either red or blue shirts only, and work either inside or outside. 25% of the employees who work outside wear red shirts, and 25% of the employees who wear red shirts work outside.


Quantity A
Quantity B
The number of employees who wear red shirts
The number of employees who work outside


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

This question looks very easy and yet it is riling me up. Can someone explain?
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C
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AakashKhatter
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Re: A certain business has its workers wear either red or blue s [#permalink] New post   30 Oct 2018, 08:48
1
See
Assuming the total number of people who work outside be 100 (this is just to make it easier)
25% workers who Work Outside wear red = 25% of 100 is 25
25% of the worker who WEAR RED SHIRT work outside= the number of people wearing red shirt outside
= 25 (25% of people wearing red)
total red shirt wearing people =100
Hence
people who wear red = People who work outside
ANS C
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chetan2u
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Re: A certain business has its workers wear either red or blue s [#permalink] New post   30 Oct 2018, 10:57
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amitmathew wrote:
A certain business has its workers wear either red or blue shirts only, and work either inside or outside. 25% of the employees who work outside wear red shirts, and 25% of the employees who wear red shirts work outside.


Quantity A
Quantity B
The number of employees who wear red shirts
The number of employees who work outside


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

This question looks very easy and yet it is riling me up. Can someone explain?


If you have two groups working outside and wearing red shirts, the common part, or overlap, out of two is 25%.
So 25% of red shirts =25% of working outside..
Only possible when 100% of red shirts =100% of working outside..
Thus both are equal

C
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amitmathew
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Re: A certain business has its workers wear either red or blue s [#permalink] New post   31 Oct 2018, 00:40
So there are 25 RED and 75 BLUE workers outside, and 75 RED and 25 BLUE workers inside if my understanding is correct.
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chetan2u
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Re: A certain business has its workers wear either red or blue s [#permalink] New post   31 Oct 2018, 01:30
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amitmathew wrote:
So there are 25 RED and 75 BLUE workers outside, and 75 RED and 25 BLUE workers inside if my understanding is correct.


NO, WE do not know the blue inside, so cannot comment....
if we take red as 100, the 2*2 matrix can be formed as attached
Attachments

TABLE.png
TABLE.png [ 16.39 KiB | Viewed 2721 times ]

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amitmathew
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Re: A certain business has its workers wear either red or blue s [#permalink] New post   31 Oct 2018, 03:44
chetan2u wrote:
amitmathew wrote:
So there are 25 RED and 75 BLUE workers outside, and 75 RED and 25 BLUE workers inside if my understanding is correct.


NO, WE do not know the blue outside, so cannot comment....
if we take red as 100, the 2*2 matrix can be formed as attached


I assumed the number of workers inside to be 100 for some odd reason. The matrix clears it up for me. Thanks!
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gmatclubot
Re: A certain business has its workers wear either red or blue s [#permalink]
31 Oct 2018, 03:44
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