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# D01-06

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Math Expert
Joined: 02 Sep 2009
Posts: 51072

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15 Sep 2014, 23:11
00:00

Difficulty:

5% (low)

Question Stats:

86% (01:03) correct 14% (01:14) wrong based on 167 sessions

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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
Joined: 02 Sep 2009
Posts: 51072

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15 Sep 2014, 23:11
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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Senior Manager
Joined: 04 Jun 2018
Posts: 357
Location: Germany
Concentration: General Management, Finance
GPA: 3.6
WE: Analyst (Transportation)

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08 Jun 2018, 02:56
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?
_________________

A couple of things that helped me in verbal:
https://gmatclub.com/forum/verbal-strategies-268700.html#p2082192

Gmat Prep CAT #1: V42, Q34, 630
Gmat Prep CAT #2: V46, Q35, 660
Gmat Prep CAT #3: V41, Q42, 680

On the mission to improve my quant score, all help is appreciated!

Math Expert
Joined: 02 Sep 2009
Posts: 51072

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08 Jun 2018, 05:38
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
Joined: 04 Sep 2015
Posts: 519
Location: India
WE: Information Technology (Computer Software)

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21 Aug 2018, 09:29
everything just cancel out by itself and we are left with 1 upon 1by 16 which after reversal becomes 16.
A
Re: D01-06 &nbs [#permalink] 21 Aug 2018, 09:29
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# D01-06

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