It is currently 22 Mar 2019, 14:51

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Suppose x1 = 2 x 10^5, x2 = 2^5 x 5^5,

Author Message
TAGS:
Moderator
Joined: 18 Apr 2015
Posts: 5862
Followers: 94

Kudos [?]: 1151 [0], given: 5465

Suppose x1 = 2 x 10^5, x2 = 2^5 x 5^5, [#permalink]  26 Jun 2017, 01:51
Expert's post
00:00

Question Stats:

63% (01:31) correct 36% (00:57) wrong based on 33 sessions

Suppose x1 = 2 x $$10^5$$, x2 = $$2^5 * 5^5$$, y1 = 200, and y2 = 400. and x2 represent the value of x in years 1 and 2, respectively, and y1 and y2 represent the value of y in years 1 and 2, respectively.

 Quantity A Quantity B The percent decrease in x from year 1 to year 2 The percent increase in y from year 1 to year 2

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________

Last edited by Carcass on 27 Dec 2018, 05:45, edited 1 time in total.
Edited by Carcass
Director
Joined: 03 Sep 2017
Posts: 521
Followers: 1

Kudos [?]: 344 [0], given: 66

Re: Suppose x1 = 2 x 10^5, x2 = 2^5 x 5^5, [#permalink]  22 Sep 2017, 04:50
Column A is $$\frac{2^5*2^5-2*2^5*5^5}{2*2^5*5^5}*100 = -50%$$, while column B is $$\frac{400-200}{200}*100 = 100%$$. Even taking absolute values, column B is greater!
Intern
Joined: 26 Sep 2017
Posts: 31
Followers: 0

Kudos [?]: 3 [0], given: 19

Re: Suppose x1 = 2 x 10^5, x2 = 2^5 x 5^5, [#permalink]  27 Sep 2017, 08:55
can anyone suggest fast approach?
Re: Suppose x1 = 2 x 10^5, x2 = 2^5 x 5^5,   [#permalink] 27 Sep 2017, 08:55
Display posts from previous: Sort by