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Math Expert V
Joined: 02 Sep 2009
Posts: 56371

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Difficulty:   5% (low)

Question Stats: 85% (01:04) correct 15% (01:15) wrong based on 172 sessions

### HideShow timer Statistics What is the value of $$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}}$$?

A. 16
B. 4
C. 2
D. $$\frac{1}{2}$$
E. $$\frac{1}{16}$$

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Math Expert V
Joined: 02 Sep 2009
Posts: 56371

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Official Solution:

What is the value of $$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}}$$?

A. 16
B. 4
C. 2
D. $$\frac{1}{2}$$
E. $$\frac{1}{16}$$

We just have to simplify the expression:
$$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}} = \frac{\frac{1}{2^3} * \frac{1}{2^8} * 2^8}{\frac{1}{8} * \frac{1}{2^4}} = \frac{\frac{1}{2^3}}{\frac{1}{2^3} * \frac{1}{2^4}} = 2^4 = 16$$

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LBS Moderator D
Joined: 04 Jun 2018
Posts: 587
Location: Germany
Concentration: General Management, Finance
GMAT 1: 730 Q47 V44 GPA: 3.4
WE: Analyst (Transportation)

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Quote:
Official Solution:

What is the value of $$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}}$$?

A. 16
B. 4
C. 2
D. $$\frac{1}{2}$$
E. $$\frac{1}{16}$$

We just have to simplify the expression:
$$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}} = \frac{\frac{1}{2^3} * \frac{1}{2^8} * 2^8}{\frac{1}{8} * \frac{1}{2^4}} = \frac{\frac{1}{2^3}}{\frac{1}{2^3} * \frac{1}{2^4}} = 2^4 = 16$$

Thank you for elaborating.

I somehow have issues with such problems on a frequent basis.

Does breaking the respective fraction down into the respective prime and exponent represent the best go to solution?
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Math Expert V
Joined: 02 Sep 2009
Posts: 56371

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Arro44 wrote:
Quote:
Official Solution:

What is the value of $$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}}$$?

A. 16
B. 4
C. 2
D. $$\frac{1}{2}$$
E. $$\frac{1}{16}$$

We just have to simplify the expression:
$$\frac{\frac{1}{8} * (\frac{1}{16})^2 * 4^4}{(\frac{1}{64})^{\frac{1}{2}} * 2^{-4}} = \frac{\frac{1}{2^3} * \frac{1}{2^8} * 2^8}{\frac{1}{8} * \frac{1}{2^4}} = \frac{\frac{1}{2^3}}{\frac{1}{2^3} * \frac{1}{2^4}} = 2^4 = 16$$

Thank you for elaborating.

I somehow have issues with such problems on a frequent basis.

Does breaking the respective fraction down into the respective prime and exponent represent the best go to solution?

In many cases yes, because in this case we break a number into its building blocks which makes manipulating a lot easier.
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Director  P
Joined: 04 Sep 2015
Posts: 641
Location: India
WE: Information Technology (Computer Software)

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everything just cancel out by itself and we are left with 1 upon 1by 16 which after reversal becomes 16.
A Re: D01-06   [#permalink] 21 Aug 2018, 10:29
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# D01-06

Moderators: chetan2u, Bunuel  