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Manager
Joined: 01 May 2008
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Can anyone help me with this question?
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Manager
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Re: Marketing survey [#permalink]
 10 May 2008, 11:03
I will take a shot. Here's the question:
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Senior Manager
Joined: 20 Feb 2008
Posts: 299
Location: Bangalore, India
Schools: R1:Cornell, Yale, NYU. R2: Haas, MIT, Ross
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Re: Marketing survey [#permalink]
10 May 2008, 11:04
Hi, I would go with answer C 30%
Ppl using only A = 400-(125+75+125)=75
Ppl using only B = 400-(125+75+100)=100
Ppl using A and B but not C= 125
% Result = (Ppl using A,B and both A and B but not C/ Total number of ppl surveyed )*100
= 75+100+125/1000 *100
= 300/1000 *100 =30%
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Manager
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Re: Marketing survey [#permalink]
10 May 2008, 11:08
You know that A = 400
You know that B = 400
You do not want anything associated with C.
So...
A = 400 - 125 - 75 -125 (I am trying to find only those that are in A only)
A = 400 - 325 = 75
B = 400 - 125 - 75 -100 (I am trying to find only those that are in B only)
B = 400 - 300 = 100
So...
A + B = 75 + 100 = 175
You can also add in those that use products A & B together, and by the circles that number is 125 (A U B)
So....
175 + 125 = 300
There were 1,000 people surveyed. 300 / 1,000 = 30%
I choose C.
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Manager
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Re: Marketing survey [#permalink]
11 May 2008, 15:38
You are right!
OA is 30%
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Re: Marketing survey
[#permalink]
11 May 2008, 15:38
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close
