Author 
Message 
TAGS:

Hide Tags

Senior Manager
Joined: 12 Oct 2008
Posts: 462

If Johnny wants to buy some candy with nickels ($0.05 coins)
[#permalink]
Show Tags
Updated on: 08 Jan 2013, 10:50
Question Stats:
76% (01:28) correct 24% (01:44) wrong based on 126 sessions
HideShow timer Statistics
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
Official Answer and Stats are available only to registered users. Register/ Login.
Originally posted by reply2spg on 29 Oct 2009, 10:56.
Last edited by Bunuel on 08 Jan 2013, 10:50, edited 1 time in total.
Renamed the topic and edited the tags.



Senior Manager
Joined: 18 Aug 2009
Posts: 279

Re: Gmatclub question
[#permalink]
Show Tags
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.



Senior Manager
Joined: 12 Oct 2008
Posts: 462

Re: Gmatclub question
[#permalink]
Show Tags
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.



Manager
Joined: 14 Dec 2011
Posts: 74

Re: Gmatclub question
[#permalink]
Show Tags
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



Manager
Status: Final Lap
Joined: 25 Oct 2012
Posts: 242
Concentration: General Management, Entrepreneurship
GPA: 3.54
WE: Project Management (Retail Banking)

Re: Gmatclub question
[#permalink]
Show Tags
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 ..
_________________
KUDOS is the good manner to help the entire community.
"If you don't change your life, your life will change you"



Director
Joined: 25 Apr 2012
Posts: 692
Location: India
GPA: 3.21
WE: Business Development (Other)

Re: Gmatclub question
[#permalink]
Show Tags
08 Jan 2013, 07:55
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
_________________
“If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do you have to keep moving forward.”



Director
Joined: 25 Apr 2012
Posts: 692
Location: India
GPA: 3.21
WE: Business Development (Other)

Re: Gmatclub question
[#permalink]
Show Tags
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
_________________
“If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do you have to keep moving forward.”



Manager
Status: Final Lap
Joined: 25 Oct 2012
Posts: 242
Concentration: General Management, Entrepreneurship
GPA: 3.54
WE: Project Management (Retail Banking)

Re: Gmatclub question
[#permalink]
Show Tags
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
_________________
KUDOS is the good manner to help the entire community.
"If you don't change your life, your life will change you"



Manager
Joined: 18 Oct 2011
Posts: 87
Location: United States
Concentration: Entrepreneurship, Marketing
GMAT Date: 01302013
GPA: 3.3

Re: Gmatclub question
[#permalink]
Show Tags
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.



Manager
Joined: 24 Oct 2013
Posts: 142
Location: India
Concentration: General Management, Strategy
WE: Information Technology (Computer Software)

Re: If Johnny wants to buy some candy with nickels ($0.05 coins)
[#permalink]
Show Tags
26 Sep 2016, 23:03
Generally if problem is dealing with positive numbers i.e amounts, dollars if one denomination is a multiple of another denominations, multiple solutions are possible.
here 0.05 is a multiple of .25 hence first statement alone is not sufficient to solve the problem statement 2 states the one denomination is greater than the other, hence both together are required Option C



NonHuman User
Joined: 09 Sep 2013
Posts: 8461

Re: If Johnny wants to buy some candy with nickels ($0.05 coins)
[#permalink]
Show Tags
24 Mar 2018, 09:09
Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up  doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Books  GMAT Club Tests  Best Prices on GMAT Courses  GMAT Mobile App  Math Resources  Verbal Resources




Re: If Johnny wants to buy some candy with nickels ($0.05 coins) &nbs
[#permalink]
24 Mar 2018, 09:09






