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# Which of the following is the decimal expression of (1/5)^4?

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Math Expert
Joined: 02 Sep 2009
Posts: 64117
Which of the following is the decimal expression of (1/5)^4?  [#permalink]

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08 Oct 2019, 23:14
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5% (low)

Question Stats:

87% (00:47) correct 13% (00:52) wrong based on 45 sessions

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Which of the following is the decimal expression of $$(\frac{1}{5})^4$$?

A 0.00032
B. 0.0016
C. 0.08
D. 0.16
E. 0.2

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Joined: 10 Mar 2018
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Location: India
Concentration: Entrepreneurship, Marketing
GMAT 1: 680 Q44 V38
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Re: Which of the following is the decimal expression of (1/5)^4?  [#permalink]

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08 Oct 2019, 23:28
($$\frac{1}{5}$$) = ($$\frac{2}{10}$$) = (0.2)

Hence $$(1/5)^4$$ = $$(0.2)^4$$

=0.0016

(B)
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Re: Which of the following is the decimal expression of (1/5)^4?  [#permalink]

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08 Oct 2019, 23:56
2
1
Bunuel wrote:
Which of the following is the decimal expression of $$(\frac{1}{5})^4$$?

A 0.00032
B. 0.0016
C. 0.08
D. 0.16
E. 0.2

Multiply by 2^4 in numerator and denominator.
so it becomes 2^4/10^4

Answer - B.
Re: Which of the following is the decimal expression of (1/5)^4?   [#permalink] 08 Oct 2019, 23:56

# Which of the following is the decimal expression of (1/5)^4?

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