Author 
Message 
TAGS:

Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 43793

A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 09:36
Question Stats:
67% (01:19) correct 33% (01:42) wrong based on 57 sessions
HideShow timer Statistics



Senior Manager
Joined: 24 Apr 2016
Posts: 333

A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 09:54
2
This post received KUDOS
Answer is B 20% Detailed Solution attached
Attachments
question.jpg [ 42.09 KiB  Viewed 569 times ]
Last edited by quantumliner on 22 Mar 2017, 10:42, edited 1 time in total.



Intern
Joined: 23 Aug 2016
Posts: 3

Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 10:22
3
This post received KUDOS
quantumliner wrote: Answer is D . 52%
Detailed Solution attached Quantumliner, Bud you seem to have taken the total wrong. Its 1.2M but you have taken it 1M by mistake. Therefore, the correct answer is A 11% 130000*100/1200000 Attached is the calculation. Hope it helps
Attachments
new.png [ 5.95 KiB  Viewed 585 times ]



Senior Manager
Joined: 24 Apr 2016
Posts: 333

Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 10:48
Salv Thanks Buddy for pointing out. But wanted to point out onething. I think, the question asks for the the Percent of the homes with fewer than 2 children had a separate bedroom for each child  So the Total would be 650,000, which is the total number of homes with fewer than two children. else it could have asked, What percent of homes have fewer than two children and had a separate bedroom for each child? Just my thought. I may be wrong. mikemcgarry, could you please share your thoughts.



Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4680

Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 11:00
quantumliner wrote: Salv Thanks Buddy for pointing out. But wanted to point out onething. I think, the question asks for the the Percent of the homes with fewer than 2 children had a separate bedroom for each child  So the Total would be 650,000, which is the total number of homes with fewer than two children. else it could have asked, What percent of homes have fewer than two children and had a separate bedroom for each child? Just my thought. I may be wrong. mikemcgarry, could you please share your thoughts. Dear quantumliner, I'm happy to respond. Yes, you are perfectly correct. The way the prompt phrase the question implies that the "whole" is 650,000, the all the houses with fewer than two children. As a general rule, in the question " What percent of A had/was X?", the A part, which is everything before the verb, is the "whole" and the X part, everything after the verb, is the "part." Does all this make sense? Mike
_________________
Mike McGarry Magoosh Test Prep
Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)



Senior Manager
Joined: 24 Apr 2016
Posts: 333

Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 11:18
Thanks mikemcgarry, makes sense.



Director
Joined: 12 Nov 2016
Posts: 790

A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 20:34
quantumliner wrote: Answer is B 20%
Detailed Solution attached Yes, based on the wording I also arrived at answer B. This is a 600 level question so I'm guessing there's often a non obvious inference we have to draw from the question/ stimulus in this particular question it's what percentage of children have a separate bed OUT of the families who have ONLY fewer than 2 children.



Intern
Joined: 23 Aug 2016
Posts: 3

Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
22 Mar 2017, 21:12
Thanks Buddy for pointing out. But wanted to point out onething. I think, the question asks for the the Percent of the homes with fewer than 2 children had a separate bedroom for each child  So the Total would be 650,000, which is the total number of homes with fewer than two children. else it could have asked, What percent of homes have fewer than two children and had a separate bedroom for each child? quantumliner ahh i see now. Thanks for pointing that out bud. the correct answer is B.



Target Test Prep Representative
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 2179
Location: United States (CA)

Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2 [#permalink]
Show Tags
27 Mar 2017, 10:56
Bunuel wrote: A survey of 1.2 million homes reported that 650,000 had fewer than 2 children. In homes with 2 or more children, 280,000 of them did not have a separate bedroom for each child. If 400,000 homes in the survey had a separate bedroom for each child, what percent of the homes with fewer than 2 children had a separate bedroom for each child?
A. 11% B. 20% C. 25% D. 52% E. 80% We are given that a survey of 1.2 million homes reported that 650,000 homes had fewer than 2 children; thus, 550,000 had 2 or more children. We are also given that in homes with 2 or more children, 280,000 of the homes did not have a separate bedroom for each child; thus, 550,000  280,000 = 270,000 had a separate bedroom for each child. Finally, we are given that 400,000 homes had a separate bedroom for each child; thus, 400,000  270,000 = 130,000 of the homes with fewer than 2 children had a separate bedroom for each child. Thus, the percentage of the homes with fewer than 2 children that had a separate bedroom for each child is: 130,000/650,000 = 13/65 = 1/5 = 20%. Answer: B
_________________
Scott WoodburyStewart
Founder and CEO
GMAT Quant SelfStudy Course
500+ lessons 3000+ practice problems 800+ HD solutions




Re: A survey of 1.2 million homes reported that 650,000 had fewer than 2
[#permalink]
27 Mar 2017, 10:56






