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Math Expert V
Joined: 02 Sep 2009
Posts: 56307
The sum S of the first n consecutive positive even integers is given  [#permalink]

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Difficulty:   5% (low)

Question Stats: 95% (00:45) correct 5% (01:03) wrong based on 615 sessions

### HideShow timer Statistics The sum S of the first n consecutive positive even integers is given by S = n(n + 1). For what value of n is this sum equal to 110 ?

A. 10
B. 11
C. 12
D. 13
E. 14

NEW question from GMAT® Quantitative Review 2019

(PS02978)

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Manager  B
Joined: 10 Aug 2009
Posts: 65
Re: The sum S of the first n consecutive positive even integers is given  [#permalink]

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10*11 = 110 so answer is A. No need to solve quadratic as options are very simple to test.

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Senior Manager  D
Joined: 18 Jun 2018
Posts: 268
Re: The sum S of the first n consecutive positive even integers is given  [#permalink]

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1
Bunuel wrote:
The sum S of the first n consecutive positive even integers is given by S = n(n + 1). For what value of n is this sum equal to 110 ?

A. 10
B. 11
C. 12
D. 13
E. 14

NEW question from GMAT® Quantitative Review 2019

(PS02978)

OA:A

Given n(n + 1)=110, find n.
Plugging in the options
first option,n=10
L.H.S= 10*11=110
R.H.S= 110
L.H.S=R.H.S
hence n =10
VP  D
Joined: 31 Oct 2013
Posts: 1393
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: The sum S of the first n consecutive positive even integers is given  [#permalink]

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Bunuel wrote:
The sum S of the first n consecutive positive even integers is given by S = n(n + 1). For what value of n is this sum equal to 110 ?

A. 10
B. 11
C. 12
D. 13
E. 14

NEW question from GMAT® Quantitative Review 2019

(PS02978)

Formula = n(n+1)

as per the question,

n(n+1) = 110

Back solve it. Only option A matches .

Board of Directors P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4512
Location: India
GPA: 3.5
Re: The sum S of the first n consecutive positive even integers is given  [#permalink]

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Bunuel wrote:
The sum S of the first n consecutive positive even integers is given by S = n(n + 1). For what value of n is this sum equal to 110 ?

A. 10
B. 11
C. 12
D. 13
E. 14

NEW question from GMAT® Quantitative Review 2019

(PS02978)

$$n(n + 1) = 10*11$$

Thus, n = 10 Answer must be (A)
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Manager  G
Joined: 01 Aug 2017
Posts: 222
Location: India
GMAT 1: 500 Q47 V15 GPA: 3.4
WE: Information Technology (Computer Software)
Re: The sum S of the first n consecutive positive even integers is given  [#permalink]

### Show Tags

Bunuel wrote:
The sum S of the first n consecutive positive even integers is given by S = n(n + 1). For what value of n is this sum equal to 110 ?

A. 10
B. 11
C. 12
D. 13
E. 14

NEW question from GMAT® Quantitative Review 2019

(PS02978)

Try plug-in.

A)
if $$n=10$$ , then $$S = n(n+1) = 10 * 11 =110$$.

Ans is A.
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Sudhanshu Re: The sum S of the first n consecutive positive even integers is given   [#permalink] 07 Aug 2018, 01:57
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