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C.

From the question stem, we have - AB are adjacent to each other. BC are in even places - In sufficient, F could be anywhere;

DE are in odd spaces; not sufficient; F could be anywhere.

Combined - B and c in even; D E in odd. 1 odd 1 even space remaining; Since AB are adjacent; A has to be odd, so F has to be in even place. Cant be at 1.
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Statement 1 is insufficient. If B and C are in even-numbered spaces, they take up two spots of 2, 4, or 6. Since Car A is next two Car B it must be in an odd spot, but that spot could be any of the odd spaces. If B is in spot 4, A could be in 3 or 5 which would allow F to be in space 1, but if B is in 2, A could be in spot 1 which would mean F couldn't be there.

Statement 2 is sufficient. If D and E are in odd numbered spaces, that means of spots 1, 3, 5, two are taken leaving only one odd numbered spot left. Since A and B have to be next to each other, one has to be odd and the other is even, so either A or B would take up the last odd space. In order for F to be in spot 1, an odd space would need to be available. Cars D, E, and either A or B are in those spots so F has to be an even spot.

The answer is B Statement 2 is sufficient, but Statement 1 is not.
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Given,

Six cars - A, B, C, D, E, F
Spaces - 1, 2,3,4,5,6
A & B are parked next to each other

Statement 1 :

" B & C are parked at even - numbered spaces"

Even space = 2, 4, 6

Possible arrangements :

B = 2 , A = 1 & 3
B = 4 , A = 3 & 5

Check :
1 F , 2 B , 3 A , 4 C, 5D, 6 E (F is in space 1)

1 A , 2B, 3D, 4C, 5F, 6E (F is not in space 1)

So, statement 1 not sufficient.

statemnt 2:

D & E are parked in ODD - numbered spaces

Check :
1 F, 2 A, 3 D, 4B, 5E, 6C (F is in space 1)
1 D, 2 a, 3E, 4B, 5C, 6F ( F is not in space 1)

So, statement 2 is not sufficient.

Combining both,

Check:

1 A, 2 B, 3 D, 4 C, 5 E, 6 F (F is not in space 1)
1 F, 2 C, 3 A, 4 B, 5 D, 6 E (F is in space 1)



Answer : E

Statement 1 & 2 together are not suffiecient.



Bunuel
Six cars—A, B, C, D, E, and F—are parked in six adjacent spaces numbered 1 through 6, from left to right. Cars A and B are parked next to each other. Is Car F parked in space 1?

(1) Car B and Car C are both parked in even-numbered spaces.
(2) Car D and Car E are both parked in odd-numbered spaces.

 


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Bunuel
Six cars—A, B, C, D, E, and F—are parked in six adjacent spaces numbered 1 through 6, from left to right. Cars A and B are parked next to each other. Is Car F parked in space 1?

(1) Car B and Car C are both parked in even-numbered spaces.
(2) Car D and Car E are both parked in odd-numbered spaces.

 


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lets see statement 1
given A, B are next to each other ,
if B, C are in even numbered spaces - 2,4,6
if B = 2, A = 1 or 3
B = 4, A = 3 or 5
B = 6, A = 5
but nothing about F
SO insufficient to tell if F is in 1.

statement 2
if D, E are in odd spaces - 1,3,5
cannot determine the position of car F from just this statement
Insufficient

considering both statements:
B, C - 2, 4, 6
D, E - 1, 3, 5
since A is next to B - it can be in odd numbered space
so A, D, E - 1,3,5
so F cannot be in 1.
C. both statements together are sufficient
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This is a very straight DS question -
We are given A and B are parked next to each other, so one will be in odd position and the other will be in even.

1 - Car B and Car C both parked in even numbers means A is definitely parked in odd. But does not give us info about F. INSUFFICIENT

2 - Car D and Car E parked in odd places does not give us significant info about F. INSUFFICIENT

Combining 1 and 2
We get that A is parked at an odd position ( from point 1 ) and D and E are taking the rest 2 odd positions ( point 2). Hence D has to be parked in an even position. SUFFICIENT
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Statement 2 is sufficient, and 1 is not

Let's list the things we know from the question.

Spaces- 1 to 6
Odd spaces- 1,3,5
Even spaces- 2,4,6
A and B are adjacent to each other, meaning one of them will be at an odd place and the other one at even place.

lets check for the 1st statement.
B and C are parked in the even spaces
AB are adjacent, this leave odd and even spaces open for F, hence this is not sufficient.

2nd statement
D and E are at odd spaces.
now if we check for AB, as they are adjacent, meaning the last odd space would either be occupied by A or B.
so, 1,3,5 all the odd places are occupied, this gives us our answer that F is not placed in the space 1.
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Lets use information provided by both statement (1) and statement (2) together and try to bring two different configurations for placing F:

Note that we have now 2 placements for F and C that satisfies both statement (1) & (2). Hence the answer is indeterminate. ie. (E)verything failed
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IMO - option C is correct.

Statement 1 alone - B and C at even spaces and AB should be adjacent, so A should be at an odd position (1, 3, 5). F could still be in either an odd or even space. - Not sufficient.

Statement 2 alone - D and E are in odd spaces. F could still be either an odd or even space. - Not sufficient.

Both of them together - B and C are even. And A is adjacent to B and in an odd place.

D and E are odd as well, so A, D and E take 1, 3, 5 - all three odd positions. So F cannot take space 1. Hence, both statements together are sufficient to answer.
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xx123456
F?
1)B/CB/CB/C
2)D/ED/ED/E


1) In the first case, if B is 2 then 1 will have A and for any other combination F can occupy 1. So this is not sufficient

2) In 2nd case D/E if in 3 & 6 , AB will take 12, so F cant be in 1 and if D/E is in 1 F is naturally not in 1. Hence this is sufficient

So answer is B
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Statement (1)
B and C are in even spaces (2, 4, or 6).

A is next to B.

Since B is even, A must be adjacent:

If B = 2 → A = 1 or 3

If B = 4 → A = 3 or 5

If B = 6 → A = 5

Possible arrangement:

B = 2, A = 1, C = 4, D = 3, E = 5, F = 6 → F is not in 1

Another:

B = 2, A = 3, C = 4, D = 5, E = 1, F = 6 → F is not in 1

Or:

B = 4, A = 5, C = 6, D = 3, E = 1, F = 2.

F is never forced into space 1, and we can't determine its position.

Statement (1): Not sufficient.

Statement (2)
D and E are in odd spaces.

No information about B or C.

Example:

F = 1

Another:

F = 6

Both satisfy the statement.

Statement (2): Not sufficient.

Statements (1) and (2) Together
Even spaces contain B, C, and F.

Odd spaces contain D, E, and A.

Since A and B must be adjacent:

B cannot be 4 (A would need 3 or 5, both occupied by D or E).

B cannot be 6 (A would need 5, occupied).

Therefore B = 2, so A = 1 (space 3 is occupied by D or E).

Thus:

A = 1

B = 2

D and E = 3 and 5

C and F = 4 and 6

So F is either 4 or 6, never 1.

The answer to "Is F in space 1?" is always No.

Together, the statements are sufficient.

Answer: C (Both statements together are sufficient, but neither statement alone is sufficient.)
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Statement1: if B is placed in no-2, A can be placed in 1 or 3. If A is placed in 1, F not in 1. If A placed in 2, F can be in 1. Not sufficient.
Statement2: If D is placed in 3, E is placed in 5 and F is placed in 1, AB cannot be placed together. Hence F cannot be in 1. Sufficient.
so B is the answer
Bunuel
Six cars—A, B, C, D, E, and F—are parked in six adjacent spaces numbered 1 through 6, from left to right. Cars A and B are parked next to each other. Is Car F parked in space 1?

(1) Car B and Car C are both parked in even-numbered spaces.
(2) Car D and Car E are both parked in odd-numbered spaces.

 


This question was provided by Manhattan Prep
for the GMAT World Cup Competition

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⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.
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i am going with option b as it gives us a definitive answer that f cannot be in space 1 thus making it sufficient.
we are given that a and b has to be together and option b says that d and e occupy odd spaces (1,3,5) if either of them chooses 1 then for sure f can't giving us an answer no. and if they leave space 1 that places them in 3 and 5 but to hold the statement true that a and b are together 1 and 2 spaces are the only ones left so it also gives us a definitive answer that f cannot take up space 1 thus making option b sufficient while option a leaves us with a room of both yes/no possibility making it insufficient.
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A B C D E F
can F be at 1?
A & B always together
1.
B and C are even, means 1 spot of even and 3 spot for Odd is left .
now as B is even, A should be Odd ( means one spot of odd get's occupied)
this leaves us with 1 even and 2 odd, which doesn't give a single position of F hence not sufficient.

2. D & E are odd, means only 1 spot of odd is left and 3 spot of even left.
now A and B should be together means either of it should be odd, that means the only position left for F is even hence F cannot be at position 1 at that is odd.

B. statement 2 alone is sufficient
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Answer B - Statement 2 alone.

We have 6 adjacent cars in a row and we are concerned with whether a specific car, F, is in the first slot. Let's examine the statements and create scenarios to prove/disprove the sufficiency. Keep in mind the restriction that A and B must be directly next to each other.

S1) Insufficient. We can have FBAC(D/E) so the answer is yes, or we can have ABFC(D/E) where the answer is no.

S2) If D and E must each be in odd numbered spots, notice that creates only one scenario in which it is possible for F to be in slot 1, namely, when D and E are in slots 3 or 5.

Furthermore, notice that in this case, F _ D _ E _ , no two adjacent slots are available for A and B to be next to each other; therefore, this case is not possible and the answer is NO. S2 is sufficient. Remember to keep in mind all restrictions in the given problem.
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Car A and Car B is adjacent to each other. From option A, it is not clear whether car F is parked in space 1. From Option B we get the idea that car D and E are parked in odd number. so combining both statements we get the answer but alone each statement is not sufficient.
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Parking space = 1,2,3, 4,5,6
Ab= Adjacent (given)
F at 1?
S-1 →> B and c at (2,4 ,.6)
If B is at 2, A can be at 3 and 1 so, F can be or can be at diff position. (Not sufficient)
S-2 =
D and E at odd place ( 1,3,5) but no in fo about others, so F can be at, multiple place (not sufficient)
S1+s2
Only possibility is ABDCEF( sufficient).
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IMO Option C

Statement 1 tells us that B & C occupy even positions that can be 2,4,6 and gives rise to multiple options for A too.

Case 1:
B=2 then C can take 4 or 6 and A can be 1 or 3
Hence insufficent.

statement 2 tells us something similar. We are still not sure of the positions and there is no relationship also that is given so its is also insufficient.


Both statements together tells me:

B, C & 1 = EVEN PLACES
D,E & 1 = ODD PLACES.

The cars that are left are A and F.
Now A has to be adjacent to B so irrespective of whichever place B occupies, the place next to it would be odd only. (1,3,5).
That leaves F to be placed at even position. Hence answering the question.
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