GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 23 Oct 2018, 22:05

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.

Close

Request Expert Reply

Confirm Cancel

If the digit h is the hundredths’ digit in the decimal number n = 0.3h

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50077
If the digit h is the hundredths’ digit in the decimal number n = 0.3h  [#permalink]

Show Tags

New post 26 Sep 2018, 05:34
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

57% (01:04) correct 43% (01:19) wrong based on 72 sessions

HideShow timer Statistics

CEO
CEO
User avatar
P
Joined: 08 Jul 2010
Posts: 2584
Location: India
GMAT: INSIGHT
WE: Education (Education)
Reviews Badge
Re: If the digit h is the hundredths’ digit in the decimal number n = 0.3h  [#permalink]

Show Tags

New post 26 Sep 2018, 06:41
Bunuel wrote:
If the digit h is the hundredths’ digit in the decimal number n = 0.3h7, what is the value of n rounded to the nearest tenth?

(1) n < 7/20
(2) h < 5


n = 0.3h7
To answer this question we need to know whether digit h is less than 5 or NOT because tenth digit will be rounded up if h≥5 and will remain 3 on rounding off at tenth place if h <5

Question: what is the value of n rounded to the nearest tenth?

Statement 1: n < 7/20
i.e. n < 0.35
i.e. h < 5 for tenth digit to be 3
i.e. rounded off value of n at tenth place = 0.3
SUFFICIENT

Statement 2: h < 5/20
i.e. h < 5 for tenth digit to be 3
i.e. rounded off value of n at tenth place = 0.3
SUFFICIENT

Answer: Option D
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Director
Director
avatar
G
Joined: 21 May 2013
Posts: 651
If the digit h is the hundredths’ digit in the decimal number n = 0.3h  [#permalink]

Show Tags

New post 12 Oct 2018, 06:12
Bunuel wrote:
If the digit h is the hundredths’ digit in the decimal number n = 0.3h7, what is the value of n rounded to the nearest tenth?

(1) n < 7/20: Say if n=0.347, then n=0.35 rounded off to 0.4. But if n=0.337, then n=0.34 rounded off to 0.3 Insufficient
(2) h < 5
. Use same example as above.


Bunuel
Can you please confirm this? I think answer should be E.
chetan2u
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6985
Re: If the digit h is the hundredths’ digit in the decimal number n = 0.3h  [#permalink]

Show Tags

New post 12 Oct 2018, 06:40
KS15 wrote:
Bunuel wrote:
If the digit h is the hundredths’ digit in the decimal number n = 0.3h7, what is the value of n rounded to the nearest tenth?

(1) n < 7/20: Say if n=0.347, then n=0.35 rounded off to 0.4. But if n=0.337, then n=0.34 rounded off to 0.3 Insufficient
(2) h < 5
. Use same example as above.


Bunuel
Can you please confirm this? I think answer should be E.
chetan2u



Hi..
If n=0.3h7 and you take h as 4, that is 0.347..
0.347 rounded to tenth will depend on just h , that is 4 and not 47
Ans will be 0.3 and not 0.4
You are first rounding to nearest hundredth and then that too nearest tenth, which is NOT correct.
Do the required action in the existing number directly.. so 0.347 means just 0.34 when you are rounding to tenths..
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

Director
Director
avatar
G
Joined: 21 May 2013
Posts: 651
Re: If the digit h is the hundredths’ digit in the decimal number n = 0.3h  [#permalink]

Show Tags

New post 12 Oct 2018, 06:52
chetan2u wrote:
KS15 wrote:
Bunuel wrote:
If the digit h is the hundredths’ digit in the decimal number n = 0.3h7, what is the value of n rounded to the nearest tenth?

(1) n < 7/20: Say if n=0.347, then n=0.35 rounded off to 0.4. But if n=0.337, then n=0.34 rounded off to 0.3 Insufficient
(2) h < 5
. Use same example as above.


Bunuel
Can you please confirm this? I think answer should be E.
chetan2u



Hi..
If n=0.3h7 and you take h as 4, that is 0.347..
0.347 rounded to tenth will depend on just h , that is 4 and not 47
Ans will be 0.3 and not 0.4
You are first rounding to nearest hundredth and then that too nearest tenth, which is NOT correct.
Do the required action in the existing number directly.. so 0.347 means just 0.34 when you are rounding to tenths..


Great-Thanks for clearing my confusion. I am taking this as a rule since you are an expert I presume.
GMAT Club Bot
Re: If the digit h is the hundredths’ digit in the decimal number n = 0.3h &nbs [#permalink] 12 Oct 2018, 06:52
Display posts from previous: Sort by

If the digit h is the hundredths’ digit in the decimal number n = 0.3h

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.