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# In a stationery store, A costs X dollars, B costs Y dollars,

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Manager
Joined: 04 Sep 2006
Posts: 113
In a stationery store, A costs X dollars, B costs Y dollars, [#permalink]

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24 May 2009, 09:05
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In a stationery store, A costs X dollars, B costs Y dollars, if \$10 is enough to buy 5 A and 3 B, whether \$10 is enough to buy 4A and 4B?
1). A costs less than \$1
2). \$10 is enough to buy 11 A.

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Manager
Joined: 10 Aug 2008
Posts: 73
Re: stationery store [#permalink]

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28 May 2009, 11:08
Another E.

1st statement

x < 1, let suppose x = 0.2 \$ & y = 3 \$

10>= 5A + 3B -- given than 5A + 3B = 10 \$

But if put same value in 10 >= 4A + 4B , to buy 4 B items itself we need 12\$.
So 1st statement does not conclude anything

2nd statement

10 >= 11A => A =< 10/11 ..again same as 1st statement
Intern
Joined: 05 May 2009
Posts: 12
Re: stationery store [#permalink]

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28 May 2009, 20:38
Case 1
Let A be 2 Cents -- 99 Cents
10\$ is never sufficient

Case 2
Any Value for A will make 4a+4b greater than 10\$

Hence IMO D is the answer
Manager
Joined: 28 Jan 2004
Posts: 201
Location: India
Re: stationery store [#permalink]

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28 May 2009, 23:14
E.
None of the statements says anything abt. B. hence insuff. (B can be as low as .000001 cents or can be as high as 3.3)
Manager
Joined: 08 Apr 2009
Posts: 96
Re: stationery store [#permalink]

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29 May 2009, 08:48
The stem says 5A+3B <= 10
Asked 4A + 4B <= 10
Case:1
Let A = .01\$, B--> 3.31............. Not sufficient to Buy 4A + 4B
Let A = .99\$, b --> 1.68 .......... Not sufficient to Buy 4A + 4B

Hence Statement 1 is sufficient to say NO

Case: 2
Its the same as Case-1

IMO D

Whats the OA??
Manager
Joined: 04 Sep 2006
Posts: 113
Re: stationery store [#permalink]

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29 May 2009, 09:22
OA is E .

stat1 &2 mean the same.
Intern
Joined: 05 May 2009
Posts: 12
Re: stationery store [#permalink]

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01 Jun 2009, 08:30
Any value satisfying either case 1 or case 2 will always make 4a+4b greater than 10\$
Any explaination supporting OA will be very helpful
Senior Manager
Joined: 16 Jan 2009
Posts: 349
Concentration: Technology, Marketing
GMAT 1: 700 Q50 V34
GPA: 3
WE: Sales (Telecommunications)
Re: stationery store [#permalink]

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01 Jun 2009, 15:30
vcbabu wrote:
In a stationery store, A costs X dollars, B costs Y dollars, if \$10 is enough to buy 5 A and 3 B, whether \$10 is enough to buy 4A and 4B?
1). A costs less than \$1
2). \$10 is enough to buy 11 A.

given - \$10 is enough to buy 5 A and 3 B

5A+3B 10 and for min value of A 4A+4B 10 and for min value of A 4A+4B < 10.

statement 2 is also INSUFFICIENT.

Together they say only that A is less than 1\$ or (10 / 11)\$ which is not sufficient either.

IMO E

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

Lahoosaher

Re: stationery store   [#permalink] 01 Jun 2009, 15:30
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# In a stationery store, A costs X dollars, B costs Y dollars,

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