It is currently 30 Nov 2020, 09:25

### 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

# (30,000,000)(2,000,000)

Author Message
TAGS:
Retired Moderator
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 175

Kudos [?]: 3037 [0], given: 394

(30,000,000)(2,000,000) [#permalink]  19 May 2018, 12:04
Expert's post
00:00

Question Stats:

88% (00:15) correct 11% (00:11) wrong based on 117 sessions
 Quantity A Quantity B (30,000,000)(2,000,000) (15,000,000)(4,000,000)

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

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Retired Moderator
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 175

Kudos [?]: 3037 [0], given: 394

Re: (30,000,000)(2,000,000) [#permalink]  28 May 2018, 13:12
Expert's post
Explanation

The GRE calculator will not be able to handle that many zeros. Start this calculation on paper. To make things easier, you could cancel as many zeros as you want, as long as you do the same operation to both quantities. For instance, you could divide both sides by 1,000,000,000,000 (just think of this as “1 with 12 zeros”), to get:

 Quantity A Quantity B $$30 \times 2$$ $$15 \times 4$$

Or, just use a bit of logic: 30 million times 2 million is 60 million million, and 15 million times 4 million is also 60 million million. (A “million million” is a trillion, but this doesn’t matter as long as you’re sure that each Quantity will have the same number of zeros.)

Hence option C is correct!
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

GRE Instructor
Joined: 10 Apr 2015
Posts: 3909
Followers: 164

Kudos [?]: 4777 [1] , given: 70

Re: (30,000,000)(2,000,000) [#permalink]  04 Jun 2018, 09:23
1
KUDOS
Expert's post
sandy wrote:
 Quantity A Quantity B (30,000,000)(2,000,000) (15,000,000)(4,000,000)

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

We can solve this question using matching operations

Given:
Quantity A: (30,000,000)(2,000,000)
Quantity B: (15,000,000)(4,000,000)

Rewrite quantities as follows:
Quantity A: (30)(1,000,000)(2)(1,000,000)
Quantity B: (15)(1,000,000)(4)(1,000,000)

Divide both quantities by 1,000,000 to get:
Quantity A: (30)(2)(1,000,000)
Quantity B: (15)(4)(1,000,000)

Divide both quantities by 1,000,000 to get:
Quantity A: (30)(2)
Quantity B: (15)(4)

Evalauate to get:
Quantity A: 60
Quantity B: 60

RELATED VIDEO FROM OUR COURSE

_________________

Brent Hanneson – Creator of greenlighttestprep.com

Manager
Joined: 22 Feb 2018
Posts: 163
Followers: 2

Kudos [?]: 139 [1] , given: 22

Re: (30,000,000)(2,000,000) [#permalink]  05 Jun 2018, 17:32
1
KUDOS
First we compare the zeros.
A’s result has 13 zeros and the integer is 6.
B’s result has 12 zeros and the integer is 60.
So these two values are equal.

_________________

Re: (30,000,000)(2,000,000)   [#permalink] 05 Jun 2018, 17:32
Display posts from previous: Sort by