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# 5*2^(1/2) percent of 1/200^(1/2) =

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Math Expert
Joined: 02 Sep 2009
Posts: 58427
5*2^(1/2) percent of 1/200^(1/2) =  [#permalink]

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04 Mar 2019, 00:36
00:00

Difficulty:

25% (medium)

Question Stats:

68% (01:08) correct 32% (01:34) wrong based on 110 sessions

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$$5*\sqrt 2$$ percent of $$\frac{1}{\sqrt{200}}=$$

A. 0.005
B. 0.02
C. 0.05
D. 0.2
E. 0.5

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Intern
Joined: 16 Apr 2018
Posts: 5
Re: 5*2^(1/2) percent of 1/200^(1/2) =  [#permalink]

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04 Mar 2019, 00:42
A.

√200=√100*2 =10√2

(5√2/100)*1/10√2

=1/200

=0.005

Therefore A

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Re: 5*2^(1/2) percent of 1/200^(1/2) =  [#permalink]

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04 Mar 2019, 01:18
Bunuel wrote:
$$5*\sqrt 2$$ percent of $$\frac{1}{\sqrt{200}}=$$

A. 0.005
B. 0.02
C. 0.05
D. 0.2
E. 0.5

$$5*\sqrt 2$$ percent of $$\frac{1}{\sqrt{200}}=$$
5√2*1/100*1/10√2
0.005
IMO A
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Re: 5*2^(1/2) percent of 1/200^(1/2) =  [#permalink]

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06 Mar 2019, 19:59
Bunuel wrote:
$$5*\sqrt 2$$ percent of $$\frac{1}{\sqrt{200}}=$$

A. 0.005
B. 0.02
C. 0.05
D. 0.2
E. 0.5

5 x √2 percent of 1/√200 is:

5√2/100 x (1/√200)

(5√2)/(100√200)

(5√2)/(100 x 10√2)

5/1000

0.005

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Intern
Joined: 23 Mar 2019
Posts: 3
5*2^(1/2) percent of 1/200^(1/2) =  [#permalink]

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07 Apr 2019, 18:22
Less than 10% of something under .1 | A
5*2^(1/2) percent of 1/200^(1/2) =   [#permalink] 07 Apr 2019, 18:22
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