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What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
Updated on: 17 Jul 2019, 22:52
Updated on: 17 Jul 2019, 22:52
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Intern
Joined: 11 Nov 2013
Posts: 13
GMAT Date: 12-26-2013
GPA: 3.6
WE:Consulting (Computer Software)
Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
03 Dec 2013, 16:18
03 Dec 2013, 16:18
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A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
Statement 1 :
h^2 = 36
h = +6 or h= -6
Not sufficient
Statement 2:
h^2 + 12h +36 = 0
(h+6)^2 = 0
h+6 = 0
h = -6
Sufficient .
Hence B
General Discussion
Manager
Joined: 16 Jan 2013
Posts: 66
Location: Bangladesh
GMAT 1: 490 Q41 V18 
GMAT 2: 610 Q45 V28
GPA: 2.75
Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
11 May 2016, 23:21
11 May 2016, 23:21
1
Kudos
A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
From statement 2,
(h+6)^2 = 0
h+6 = 0
h = -6, that is clearly sufficient. In this case, B is sufficient
But l approached the statement differently,
h (h+12) = -36
Hence, h=-36 or h = -48. Two values for h. Hence insufficient. In this case the answer would be E
l know it's a silly mistake.
Could someone please clarify. Regards,
Rana Azad
Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
11 May 2016, 23:36
11 May 2016, 23:36
2
Kudos
Expert Reply
ranaazad wrote:
A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
From statement 2,
(h+6)^2 = 0
h+6 = 0
h = -6, that is clearly sufficient. In this case, B is sufficient
But l approached the statement differently,
h (h+12) = -36
Hence, h=-36 or h = -48. Two values for h. Hence insufficient. In this case the answer would be E
l know it's a silly mistake.
Could someone please clarify. Regards,
Rana Azad
Hi Rana,
h (h+12) = -36 does not mean h =-36 or h=-48..
substitute and check..
h=-36......
h(h+12) = -36
so -36(-36+12) = -36.......... -36+12 = 1.. NO
h (h+12) = -36 does not mean h =-36
IT means the product of h and h+12 is -36...
so if h=-6, h+12 = -6+12 = 6...
and h*(h+12) = -6 * 6 = -36 ... correct..
Always take all to ONE side and solve
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Joined: 16 Jan 2013
Posts: 66
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GMAT 1: 490 Q41 V18
GMAT 2: 610 Q45 V28
GPA: 2.75
Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
11 May 2016, 23:45
11 May 2016, 23:45
chetan2u wrote:
ranaazad wrote:
A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
From statement 2,
(h+6)^2 = 0
h+6 = 0
h = -6, that is clearly sufficient. In this case, B is sufficient
But l approached the statement differently,
h (h+12) = -36
Hence, h=-36 or h = -48. Two values for h. Hence insufficient. In this case the answer would be E
l know it's a silly mistake.
Could someone please clarify. Regards,
Rana Azad
Hi Rana,
h (h+12) = -36 does not mean h =-36 or h=-48..
substitute and check..
h=-36......
h(h+12) = -36
so -36(-36+12) = -36.......... -36+12 = 1.. NO
h (h+12) = -36 does not mean h =-36
IT means the product of h and h+12 is -36...
so if h=-6, h+12 = -6+12 = 6...
and h*(h+12) = -6 * 6 = -36 ... correct..
Always take all to ONE side and solve
l understand now. Thank you very much, sir!
+1
Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
17 Nov 2016, 19:21
17 Nov 2016, 19:21
Hi guys. I was struggling with the same question and I still do not understand your answers' explanations.
I agree that statement (1) is insufficient but I don't understand how statement (2) is sufficient. Here's how I did my calculations for statement (2):
h^2 + 12h = -36
h^2 + 12h + 36 = 0
h^2 + 12h + 6^2 = 0
(h + 6)^2 + 12h = 0
From here why does 12h disappear from the equation to make this statement sufficient ?
Thank you.
Posted from my mobile device
I agree that statement (1) is insufficient but I don't understand how statement (2) is sufficient. Here's how I did my calculations for statement (2):
h^2 + 12h = -36
h^2 + 12h + 36 = 0
h^2 + 12h + 6^2 = 0
(h + 6)^2 + 12h = 0
From here why does 12h disappear from the equation to make this statement sufficient ?
Thank you.
Posted from my mobile device
Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
17 Nov 2016, 22:12
17 Nov 2016, 22:12
Expert Reply
Grid wrote:
Hi guys. I was struggling with the same question and I still do not understand your answers' explanations.
I agree that statement (1) is insufficient but I don't understand how statement (2) is sufficient. Here's how I did my calculations for statement (2):
h^2 + 12h = -36
h^2 + 12h + 36 = 0
h^2 + 12h + 6^2 = 0
(h + 6)^2 + 12h = 0
From here why does 12h disappear from the equation to make this statement sufficient ?
Thank you.
Posted from my mobile device
I agree that statement (1) is insufficient but I don't understand how statement (2) is sufficient. Here's how I did my calculations for statement (2):
h^2 + 12h = -36
h^2 + 12h + 36 = 0
h^2 + 12h + 6^2 = 0
(h + 6)^2 + 12h = 0
From here why does 12h disappear from the equation to make this statement sufficient ?
Thank you.
Posted from my mobile device
h^2 + 12h + 6^2 = 0 is the same as (h + 6)^2 = 0, so there is no extra "12h" there.
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Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
29 Nov 2016, 15:32
29 Nov 2016, 15:32
2
Kudos
Expert Reply
A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
We need to determine the value of h.
Statement One Alone:
h^2 = 36
We can solve the equation as follows:
h^2 = 36
√(h^2) = √(36)
|h| = 6
h = 6 or h = -6
Since there are two different values for h, statement one alone is not sufficient to answer the question. We can eliminate answer choices A and D.
Statement Two Alone:
h^2 + 12h = -36
We can solve the equation as follows:
h^2 + 12h = -36
h^2 +12 h + 36 = 0
(h + 6)(h + 6) = 0
h = -6
Since there is only one value for h, statement two alone is sufficient to answer the question.
Answer: B
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Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
08 Aug 2020, 09:28
08 Aug 2020, 09:28
A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h=+6 or -6
Not suffcient.
(2) h^2+12h+36
(h+6) (h+6)=0
h= -6
Sufficient.
B
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What is the value of h ? (1) h2 = 36 (2) h2 + 12h = –36 Statement (
[#permalink]
26 Nov 2020, 17:43
26 Nov 2020, 17:43
What is the value of h ?
(1) h2 = 36
(2) h2 + 12h = –36
Statement (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.
the square root of 36 is +- 6 not 6... what a slip up of an easy question.
(1) h2 = 36
(2) h2 + 12h = –36
Statement (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.
the square root of 36 is +- 6 not 6... what a slip up of an easy question.
GMAT Club Legend
Joined: 03 Oct 2013
Affiliations: CrackVerbal
Posts: 4950
Location: India
Re: What is the value of h ? (1) h2 = 36 (2) h2 + 12h = –36 Statement (
[#permalink]
26 Nov 2020, 19:15
26 Nov 2020, 19:15
Top Contributor
[quote="njp1"]What is the value of h ?
(1) h2 = 36
(2) h2 + 12h = –36
Statement 1: h2 = 36
h = +6 or -6
Statement 1 is insufficient, Answer Options could be B, C or E
Statement 2: h^2 + 12h = –36
h^2 + 12h + 36 = 0
(h + 6)^2
h = -6
Statement 2 is sufficient.
Option B
Arun Kumar
(1) h2 = 36
(2) h2 + 12h = –36
Statement 1: h2 = 36
h = +6 or -6
Statement 1 is insufficient, Answer Options could be B, C or E
Statement 2: h^2 + 12h = –36
h^2 + 12h + 36 = 0
(h + 6)^2
h = -6
Statement 2 is sufficient.
Option B
Arun Kumar
Re: What is the value of h ? (1) h2 = 36 (2) h2 + 12h = –36 Statement (
[#permalink]
26 Nov 2020, 19:19
26 Nov 2020, 19:19
Expert Reply
njp1 wrote:
What is the value of h ?
(1) h2 = 36
(2) h2 + 12h = –36
Statement (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.
the square root of 36 is +- 6 not 6... what a slip up of an easy question.
(1) h2 = 36
(2) h2 + 12h = –36
Statement (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.
the square root of 36 is +- 6 not 6... what a slip up of an easy question.
Please check the forum. These questions have already been discussed.
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Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
26 Nov 2020, 19:36
26 Nov 2020, 19:36
1
Bookmarks
A4G wrote:
What is the value of h ?
(1) h^2 = 36
(2) h^2 + 12h = -36
(1) h^2 = 36
(2) h^2 + 12h = -36
1) h^2 = 36
or h = +_ 6
not sufficient
(2) \(h^2 + 12h = -36\)
(2) \(h^2 + 12h +36=0\)
\((h-6)^2 = 0\)
h=6
sufficient
Thus B
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Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36
[#permalink]
11 Jan 2023, 06:18
11 Jan 2023, 06:18
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Re: What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36 [#permalink]
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