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Math Revolution GMAT Instructor V
Joined: 16 Aug 2015
Posts: 7101
GMAT 1: 760 Q51 V42 GPA: 3.82
What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})?  [#permalink]

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Difficulty:   5% (low)

Question Stats: 86% (01:02) correct 14% (01:00) wrong based on 35 sessions

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[GMAT math practice question]

What is the value of $$\frac{(2^{2020} + 2^{2018})}{(2^{2020}-2^{2018}})?$$

$$A. \frac{3}{5}$$
$$B. \frac{5}{3}$$
$$C. 2^{2018}$$
$$D. 2^{2019}$$
$$E. 2^{2020}$$

_________________ MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
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"Only $149 for 3 month Online Course" "Free Resources-30 day online access & Diagnostic Test" "Unlimited Access to over 120 free video lessons - try it yourself" VP  G Joined: 09 Mar 2018 Posts: 1007 Location: India What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})? [#permalink] ### Show Tags MathRevolution wrote: [GMAT math practice question] What is the value of $$\frac{(2^{2020} + 2^{2018})}{(2^{2020}-2^{2018}})?$$ $$A. \frac{3}{5}$$ $$B. \frac{5}{3}$$ $$C. 2^{2018}$$ $$D. 2^{2019}$$ $$E. 2^{2020}$$ Take $$2^{2020}$$ common from both numerator and denominator, and even cancel them out to get {1+1/4} / {1-1/4} 5/4 * 4/3 $$\frac{5}{3}$$ B _________________ If you notice any discrepancy in my reasoning, please let me know. Lets improve together. Quote which i can relate to. Many of life's failures happen with people who do not realize how close they were to success when they gave up. Senior Manager  S Joined: 04 Aug 2010 Posts: 383 Schools: Dartmouth College Re: What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})? [#permalink] ### Show Tags 2 MathRevolution wrote: [GMAT math practice question] What is the value of $$\frac{(2^{2020} + 2^{2018})}{(2^{2020}-2^{2018}})?$$ $$A. \frac{3}{5}$$ $$B. \frac{5}{3}$$ $$C. 2^{2018}$$ $$D. 2^{2019}$$ $$E. 2^{2020}$$ $$\frac{2^{2020} + 2^{2018}}{2^{2020}-2^{2018}}$$ = $$\frac{2^{2018}(2^2+1)}{2^{2018}(2^2-1)}$$ =$$\frac{5}{3}$$ _________________ GMAT and GRE Tutor Over 1800 followers Click here to learn more GMATGuruNY@gmail.com New York, NY If you find one of my posts helpful, please take a moment to click on the "Kudos" icon. Available for tutoring in NYC and long-distance. For more information, please email me at GMATGuruNY@gmail.com. Math Revolution GMAT Instructor V Joined: 16 Aug 2015 Posts: 7101 GMAT 1: 760 Q51 V42 GPA: 3.82 Re: What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})? [#permalink] ### Show Tags => $$\frac{(2^{2020} + 2^{2018})}{(2^{2020}-2^{2018})}$$ $$= \frac{(2^22^{2018} + 2^{2018})}{(2^22^{2018}-2^{2018})}$$ $$= \frac{(2^{2018})(2^2+1)}{(2^{2018})(2^2-1)} = \frac{(2^2+1)}{(2^2-1)}$$ $$= \frac{5}{3}$$ Therefore, the answer is B. Answer: B _________________ MathRevolution: Finish GMAT Quant Section with 10 minutes to spare The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only$149 for 3 month Online Course"
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Intern  B
Joined: 05 Nov 2017
Posts: 5
Re: What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})?  [#permalink]

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I tried this out a different way by giving the same scenario to more manageable numbers.

(2^5+2^3) / (2^5 +2^3) = (32 + 8) / (32 - 8) = 40 / 24 = 5/3 Re: What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})?   [#permalink] 18 Feb 2019, 16:52
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# What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{2018})?

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