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Percent n SET problem

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by camitava » Thu Sep 06, 2007 1:36 am
Boys,
I am having a problem -

Code: Select all

The table above shows the number of vehicles at Bill’s car
dealership that have certain features. No vehicle has all three
features, but 10% have power windows and anti-lock brakes,
15% have anti-lock brakes and a CD player, and 22% have
power windows and a CD player. What percent of the
vehicles at Bill’s car dealership have a CD player but no
power windows or anti-lock brakes?
(A) 25
(B) 18
(C) 11
(D) 3
(E) 0
But don't know which one will be the answer! Can u pls help me out?
Correct me If I am wrong


Regards,

Amitava
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Source: — Problem Solving |

by mschling52 » Thu Sep 06, 2007 5:24 am
I think the table that the question references is necessary to solve this one.
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by camitava » Thu Sep 06, 2007 10:29 pm
My apology! I am sorry for the fact that I failed to provide you all the complete question set. However, now look at it -
power windows 60%
anti-lock brakes 25%
CD player 40%
2. The table above shows the number of vehicles at Bill’s car
dealership that have certain features. No vehicle has all three
features, but 10% have power windows and anti-lock brakes,
15% have anti-lock brakes and a CD player, and 22% have
power windows and a CD player. What percent of the
vehicles at Bill’s car dealership have a CD player but no
power windows or anti-lock brakes?
(A) 25
(B) 18
(C) 11
(D) 3
(E) 0
Guys need ur help!
Correct me If I am wrong


Regards,

Amitava
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by ratindasgupta » Fri Sep 07, 2007 7:18 am
is the answer D?
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by ri2007 » Fri Sep 07, 2007 7:26 am
This is the way I would solve it

Power Window + CD player = 22
Anti Lock System + CD = 15

So Total Overlap With CD =22+15 =37

Total CD player = 40

So Total CD without oerlap =40-37 = 3

The rest of the info is not needed

Pls let me know if i am correct or have gone wrong some where.
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by kajcha » Fri Sep 07, 2007 10:29 am
I agree. Ans Shoud be 3
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by samirpandeyit62 » Fri Sep 07, 2007 10:37 am
RI you have solved it in a perfect GMAT style. It should be 3 only.
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by camitava » Sun Sep 09, 2007 9:16 pm
Thanks a lot guys!!!! Looking for ur help in future :)
Correct me If I am wrong


Regards,

Amitava
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