It is currently 11 Dec 2018, 18:50
My Tests

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

QOTD#2 Maurice entered a number into his calculator and

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4749
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1654 [1] , given: 396

CAT Tests
QOTD#2 Maurice entered a number into his calculator and [#permalink] New post 29 Jun 2016, 15:05
1
This post received
KUDOS
Expert's post
00:00

Question Stats:

38% (01:01) correct 61% (00:41) wrong based on 18 sessions
Maurice entered a number into his calculator and erroneously divided the number by 0.03 instead of 0.0003, resulting in an incorrect result. Which of the following is a single operation that Maurice could perform on his calculator to correct the error?

Indicate all such operations.

A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01


[Reveal] Spoiler: OA
A and D
[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

GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 1232
Followers: 45

Kudos [?]: 1113 [0], given: 7

Re: QOTD#2 Maurice entered a number into his calculator and [#permalink] New post 12 Dec 2016, 07:30
Expert's post
sandy wrote:
Maurice entered a number into his calculator and erroneously divided the number by 0.03 instead of 0.0003, resulting in an incorrect result. Which of the following is a single operation that Maurice could perform on his calculator to correct the error?

Indicate all such operations.

A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01


[Reveal] Spoiler: OA
A and D

One approach is to choose an arbitrary value for the number that Maurice FIRST entered into his calculator BEFORE he accidentally divided by 0.03 (instead of 0.0003)
Let's say that 0.03 is that FIRST value.
So, Maurice INTENDED to divide 0.03 by 0.0003. IF he had performed the correct operation, he would have calculated 0.03/0.0003 = 100.

INSTEAD, Maurice accidentally divided 0.03 by 0.03. So, Maurice's incorrect calculation = 0.03/0.03 = 1

So, what must we do to the incorrect answer (1) in order to get the correct answer (100)?
Let's check the answer choices...

A. Multiply the incorrect product by 100. If we multiply 1 by 100, we get 100. PERFECT!
B. Divide the incorrect product by 100. If we divide 1 by 100, we get 0.01. NO GOOD
C. Multiply the incorrect product by 0.01. If we multiply 1 by 0.01, we get 0.01. NO GOOD
D. Divide the incorrect product by 0.01. If we divide 1 by 0.01, we get 100. PERFECT!

Answers are A and D
_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for our free GRE Question of the Day emails

Re: QOTD#2 Maurice entered a number into his calculator and   [#permalink] 12 Dec 2016, 07:30
Display posts from previous: Sort by

QOTD#2 Maurice entered a number into his calculator and

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.