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If 6 is 20 percent of 200 percent of a certain number, what is the num

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If 6 is 20 percent of 200 percent of a certain number, what is the num [#permalink]

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New post 17 Apr 2017, 00:40
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Re: If 6 is 20 percent of 200 percent of a certain number, what is the num [#permalink]

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New post 17 Apr 2017, 04:30
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Bunuel wrote:
If 6 is 20 percent of 200 percent of a certain number, what is the number?

A. 15
B. 21
C. 34
D. 49
E. 56


I am not 100% sure but here is what I think
6=20/100*200/100*x
6*5/2=x
30/2=x
x=15
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If 6 is 20 percent of 200 percent of a certain number, what is the num [#permalink]

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New post 17 Apr 2017, 08:36
Should the answer be 10? 200% of 10 is 30 and 20% of 30 is 6

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Ok the answer is 15 bc it's not 200% more, it's 200% of
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Re: If 6 is 20 percent of 200 percent of a certain number, what is the num [#permalink]

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New post 20 Apr 2017, 16:49
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Bunuel wrote:
If 6 is 20 percent of 200 percent of a certain number, what is the number?

A. 15
B. 21
C. 34
D. 49
E. 56


Recall that 20% is 0.2 and that 200% is 2.

6 = (0.2)(2)(x)

6 = 0.4(x)

6/0.4 = x

60/4 = x

15 = x

Answer: A
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Re: If 6 is 20 percent of 200 percent of a certain number, what is the num [#permalink]

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New post 17 May 2017, 12:58
If 6 is 20 percent of 200 percent of a certain number, what is the number?

A. 15
B. 21
C. 34
D. 49
E. 56

Let number be x.
20% of 200% of x = 6
\(\frac{20}{100}\) * \(\frac{200}{100}\) * x = 6

x = \(\frac{6 * 100 * 100}{20 * 200}\) = 15
Answer A...

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Re: If 6 is 20 percent of 200 percent of a certain number, what is the num   [#permalink] 17 May 2017, 12:58
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