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What is 1 percent of 0.023?

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What is 1 percent of 0.023? [#permalink]

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New post 16 Oct 2017, 01:32
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What is 1 percent of 0.023? [#permalink]

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New post 16 Oct 2017, 03:08
Bunuel wrote:
What is 1 percent of 0.023?

(A) 0.00023
(B) 0.0023
(C) 0.23
(D) 2.3
(E) 23

\((1 * 10^{-2}) * (23 * 10^{-3}) =\)

\(23 * 10^{-5}\)

\(.00023\)

OR

\((\frac{1}{10^2} * \frac{23}{10^3}) =\)\(\frac{23}{10^5} =\)

\(23 * 10^{-5}\)

\(.00023\)

Answer A

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Re: What is 1 percent of 0.023? [#permalink]

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New post 16 Oct 2017, 05:09
Remember that the shortcut to divide by ten is just shift a decimal one place to the left. 1% = dividing by 100, so shift the decimal to the left two places and insert the requisite zeros after the decimal point. The correct answer is choice A - 0.00023.
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Re: What is 1 percent of 0.023? [#permalink]

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New post 17 Oct 2017, 11:41
Bunuel wrote:
What is 1 percent of 0.023?

(A) 0.00023
(B) 0.0023
(C) 0.23
(D) 2.3
(E) 23


One percent of 0.023 is:

0.01 x 0.023 = 0.00023

Answer: A
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Re: What is 1 percent of 0.023? [#permalink]

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New post 22 Oct 2017, 15:10
A, 0.00023.
[.023][/100] is the equivalent to multiplying by [1][/100]. 100=10^2, so move decimal point two places to the left.
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Re: What is 1 percent of 0.023? [#permalink]

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New post 22 Oct 2017, 18:41
1 percent of 0.023

= \(\frac{1}{100}\)*\(\frac{23}{1000}\)

= \(\frac{23}{100000}\)= 0.00023

Answer: A.
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Re: What is 1 percent of 0.023?   [#permalink] 22 Oct 2017, 18:41
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