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If Johnny wants to buy some candy with nickels ($0.05 coins) [#permalink]
 29 Oct 2009, 10:56
Question Stats:
68% (01:22) correct
31% (00:18) wrong based on 1 sessions
If Johnny wants to buy some candy with nickels ($0.05 coins) and quarters ($0.25 coins) that his mother gave him, how many quarters does he have? (1) The total value of Johnny's coins is 85 cents. (2) Johnny has more quarters than nickels in his pocket. (C) 2008 GMAT Club - m04#22
Last edited by Bunuel on 08 Jan 2013, 10:50, edited 1 time in total.
Renamed the topic and edited the tags.
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Re: Gmatclub question [#permalink]
29 Oct 2009, 11:09
The question does not provide any information about how much money the kid has. So obviously you need both statements to answer the question. Ans is C.
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Re: Gmatclub question [#permalink]
29 Oct 2009, 11:48
OMG.......You are absolutely right.....Don't know what am I doing........ hgp2k wrote: The question does not provide any information about how much money the kid has. So obviously you need both statements to answer the question. Ans is C.
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Re: Gmatclub question [#permalink]
08 Jan 2013, 07:14
I got this correct by my understanding, but i am not able to understand the explanation.
Can anyone please explain algebraically.
Thanks & Regards
Vinni
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Re: Gmatclub question [#permalink]
08 Jan 2013, 07:31
reply2spg wrote: If Johnny wants to buy some candy with nickels ($0.05 coins) and quarters ($0.25 coins) that his mother gave him, how many quarters does he have? The total value of Johnny's coins is 85 cents. Johnny has more quarters than nickels in his pocket. (C) 2008 GMAT Club - m04#22Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient EACH statement ALONE is sufficient Statements (1) and (2) TOGETHER are NOT sufficient Let T : the total value of Johnny's coin T=85 X : the number of quarter in Johnny's pocket Y: the number of nickel in Johnny's pocket ; Hence, (0.25*X) + (0.05*Y) = 85 Since X>Y (Johnny has more quarters than nickels in his pocket) X and Y can have different values . For example : x = 339 , y= 5 Or x= 338, y = 10 Or x = 337, y = 15 Thus, the answer should be E. Plz Correct if i'm wrong .. 
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Re: Gmatclub question [#permalink]
08 Jan 2013, 07:55
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Rock750 wrote: reply2spg wrote: If Johnny wants to buy some candy with nickels ($0.05 coins) and quarters ($0.25 coins) that his mother gave him, how many quarters does he have? The total value of Johnny's coins is 85 cents. Johnny has more quarters than nickels in his pocket. (C) 2008 GMAT Club - m04#22Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient EACH statement ALONE is sufficient Statements (1) and (2) TOGETHER are NOT sufficient Let T : the total value of Johnny's coin T=85 X : the number of quarter in Johnny's pocket Y: the number of nickel in Johnny's pocket ; Hence, (0.25*X) + (0.05*Y) = 85 Since X>Y (Johnny has more quarters than nickels in his pocket) X and Y can have different values . For example : x = 339 , y= 5 Or x= 338, y = 10 Or x = 337, y = 15 Thus, the answer should be E. Plz Correct if i'm wrong .. Hi, And has to be C Let there by x no. Of quarter and y nickels.We need to find x Now st 1 says x*0.25+y*.05= 85 cents There are many possible values such as below x=3 and y=2 or x= 2, y = 7 or x=1 and y=12 There fire not suff St 2 says x>y Alone not sufficient Combining we see that only possible value will be x= 3 and y= 2 Thanks Mridul
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Re: Gmatclub question [#permalink]
08 Jan 2013, 08:00
Thanks Mridul.  mridulparashar1 wrote: Hi,
And has to be C
Let there by x no. Of quarter and y nickels.We need to find x
Now st 1 says
x*0.25+y*.05= 85 cents
There are many possible values such as below
x=3 and y=2 or x= 2, y = 7 or x=1 and y=12
There fire not suff
St 2 says x>y
Alone not sufficient
Combining we see that only possible value will be x= 3 and y= 2
Thanks
Mridul
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Re: Gmatclub question [#permalink]
08 Jan 2013, 08:02
Rock750 wrote: reply2spg wrote: If Johnny wants to buy some candy with nickels ($0.05 coins) and quarters ($0.25 coins) that his mother gave him, how many quarters does he have? The total value of Johnny's coins is 85 cents. Johnny has more quarters than nickels in his pocket. (C) 2008 GMAT Club - m04#22Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient EACH statement ALONE is sufficient Statements (1) and (2) TOGETHER are NOT sufficient Let T : the total value of Johnny's coin T=85 X : the number of quarter in Johnny's pocket Y: the number of nickel in Johnny's pocket ; Hence, (0.25*X) + (0.05*Y) = 85 Since X>Y (Johnny has more quarters than nickels in his pocket) X and Y can have different values . For example : x = 339 , y= 5 Or x= 338, y = 10 Or x = 337, y = 15 Thus, the answer should be E. Plz Correct if i'm wrong .. Hi, And has to be C Let there by x no. Of quarter and y nickels.We need to find x Now st 1 says x*0.25+y*.05= 85 cents There are many possible values such as below x=3 and y=2 or x= 2, y = 7 or x=1 and y=12 There fire not suff St 2 says x>y Alone not sufficient Combining we see that only possible value will be x= 3 and y= 2 Thanks Mridul
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Re: Gmatclub question [#permalink]
08 Jan 2013, 08:20
mridulparashar1 wrote: Rock750 wrote: reply2spg wrote: If Johnny wants to buy some candy with nickels ($0.05 coins) and quarters ($0.25 coins) that his mother gave him, how many quarters does he have? The total value of Johnny's coins is 85 cents. Johnny has more quarters than nickels in his pocket. (C) 2008 GMAT Club - m04#22Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient EACH statement ALONE is sufficient Statements (1) and (2) TOGETHER are NOT sufficient Let T : the total value of Johnny's coin T=85 X : the number of quarter in Johnny's pocket Y: the number of nickel in Johnny's pocket ; Hence, (0.25*X) + (0.05*Y) = 85 Since X>Y (Johnny has more quarters than nickels in his pocket) X and Y can have different values . For example : x = 339 , y= 5 Or x= 338, y = 10 Or x = 337, y = 15 Thus, the answer should be E. Plz Correct if i'm wrong .. Hi, And has to be C Let there by x no. Of quarter and y nickels.We need to find x Now st 1 says x*0.25+y*.05= 85 cents There are many possible values such as below x=3 and y=2 or x= 2, y = 7 or x=1 and y=12 There fire not suff St 2 says x>y Alone not sufficient Combining we see that only possible value will be x= 3 and y= 2 Thanks Mridul Since 1 quarter = $0.25 = 25 cents and 1 nickel = $0.05 = 5cents ; the correct equation is : 25x + 5y = 85 Now it becomes clear. thanks Mridul
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Re: Gmatclub question [#permalink]
08 Jan 2013, 08:37
C
With B only you could have 8 Q's and 7 N's, or 9 Q's and 7 N's...we don't have a total value so impossible to determine.
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Re: Gmatclub question
[#permalink]
08 Jan 2013, 08:37
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