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How many even integers are there between 50^(1/2) and 150^(1/2)?

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Joined: 02 Sep 2009
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How many even integers are there between 50^(1/2) and 150^(1/2)?  [#permalink]

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New post 08 Feb 2019, 05:49
1
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

69% (00:49) correct 31% (01:07) wrong based on 26 sessions

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Joined: 31 Oct 2013
Posts: 1468
Concentration: Accounting, Finance
GPA: 3.68
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Re: How many even integers are there between 50^(1/2) and 150^(1/2)?  [#permalink]

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New post 08 Feb 2019, 06:01
Bunuel wrote:
How many even integers are there between \(\sqrt{50}\) and \(\sqrt{150}\)?

A. 3
B. 5
C. 10
D. 50
E. 100



\(\sqrt{50}\)= 7.011111

\(\sqrt{150}\)=12.10000


8-10-12

A is the correct answer.
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How many even integers are there between 50^(1/2) and 150^(1/2)?  [#permalink]

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New post 08 Feb 2019, 06:08
Bunuel wrote:
How many even integers are there between \(\sqrt{50}\) and \(\sqrt{150}\)?

A. 3
B. 5
C. 10
D. 50
E. 100


\(\sqrt{50}\) = \(\sqrt{2*5*5}\) = \(5\sqrt{2}\) = 5*1.41~ 7.05

\(\sqrt{150}\) = \(\sqrt{2*5*5*3}\) = \(5\sqrt{6}\) ~ 12.5

So even integers between 7.05 and 12.5 are 8,10,12.

Answer should be A.
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How many even integers are there between 50^(1/2) and 150^(1/2)?   [#permalink] 08 Feb 2019, 06:08
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How many even integers are there between 50^(1/2) and 150^(1/2)?

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