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There are 60 cars in a shop. these cars are either full size

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New post 16 May 2004, 12:08
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There are 60 cars in a shop. these cars are either full size or midsize or compact. 10 cars are red and 19 are blue. How many cars are full size?
1) No red or blue cars are of full size
2) The number of full size cars is greater than the sum of mid size
and compact cars
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New post 16 May 2004, 19:35
E it is for me.

A) not sufficient because other 31 cars could be compact/midsize/fullsize
B) Not sufficient

If you combine both we know that 10+19 = 29 cars not full size. There are 31 cars left. SO no of full size has to be either 30 or 31. So we cannot determine
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New post 17 May 2004, 05:52
anandnk,

I think you might have been hasty in reaching your answer.

I believe the answer is C.

1) Insufficient

2) Insufficient


Reading 1 & 2 together, ----> F > M+C AND F <= 31

For F to be greater than M + C; F must be 31. If F = 30, then it isn't greater than M + C.
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New post 17 May 2004, 06:05
ndidi204 wrote:
anandnk,

I think you might have been hasty in reaching your answer.

I believe the answer is C.

1) Insufficient

2) Insufficient


Reading 1 & 2 together, ----> F > M+C AND F <= 31

For F to be greater than M + C; F must be 31. If F = 30, then it isn't greater than M + C.


we know M+C>=29. F could be eiter 30 or 31. Right?
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New post 17 May 2004, 06:12
Yes.

But when you combine the two statements, then you're assuming that F > M + C. So F <> 30. F can only be 31.

Last edited by Makky07 on 17 May 2004, 08:31, edited 1 time in total.
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New post 17 May 2004, 08:13
ndidi204 wrote:
Yes.

But when you combine the two statement, then you're assuming that F > M + C. So F <> 30. F can only be 31.


See M+C could be 29 or greater than 29. This makes F either 30 or 31. Right?
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New post 17 May 2004, 08:32
mirhaque , second statment says that number of fullsize is greater than mid/comp so number of fullsize cars has to be greater than 30
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New post 17 May 2004, 13:46
ndidi204 wrote:
anandnk,

I think you might have been hasty in reaching your answer.

I believe the answer is C.

1) Insufficient

2) Insufficient


Reading 1 & 2 together, ----> F > M+C AND F <= 31

For F to be greater than M + C; F must be 31. If F = 30, then it isn't greater than M + C.


I am still confused. what is m+c=? all we know m+c>29 & F>m+c. how can we say
Quote:
F must be 31
  [#permalink] 17 May 2004, 13:46
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There are 60 cars in a shop. these cars are either full size

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