GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 05 Aug 2020, 12:14 ### 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

#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0

Author Message
TAGS:

### Hide Tags

Math Expert V
Joined: 02 Sep 2009
Posts: 65807
Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

4
10 00:00

Difficulty:   55% (hard)

Question Stats: 60% (01:47) correct 40% (01:50) wrong based on 236 sessions

### HideShow timer Statistics

Jamboree and GMAT Club Contest Starts

QUESTION #9:

M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

Check conditions below:

For the following two weekends we'll be publishing 4 FRESH math questions and 4 FRESH verbal questions per weekend.

To participate, you will have to reply with your best answer/solution to the new questions that will be posted on Saturday and Sunday at 9 AM Pacific.
Then a week later, respective forum moderators will be selecting 2 winners who provided most correct answers to the questions, along with best solutions. Those winners will get 6-months access to GMAT Club Tests.

PLUS! Based on the answers and solutions for all the questions published during the project ONE user will be awarded with ONE Grand prize. He/She can opt for one of the following as a Grand Prize. It will be a choice for the winner:
-- GMAT Online Comprehensive (If the student wants an online GMAT preparation course)
-- GMAT Classroom Program (Only if he/she has a Jamboree center nearby and is willing to join the classroom program)

Bookmark this post to come back to this discussion for the question links - there will be 2 on Saturday and 2 on Sunday!

There is only one Grand prize and student can choose out of the above mentioned too options as per the conditions mentioned in blue font.
All announcements and winnings are final and no whining GMAT Club reserves the rights to modify the terms of this offer at any time.

NOTE: Test Prep Experts and Tutors are asked not to participate. We would like to have the members maximize their learning and problem solving process.

Thank you!

_________________
Board of Directors P
Joined: 17 Jul 2014
Posts: 2420
Location: United States (IL)
Concentration: Finance, Economics
GMAT 1: 650 Q49 V30 GPA: 3.92
WE: General Management (Transportation)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

2
ok, so, if M+N rounded up to the nearest tenth's is M, N must be <0.05, thus we know for sure that N < 0.06, and the answer to our question is a definite NO, which makes statement 1 sufficient.
Statement 2 is not sufficient. N can be any number greater than 0.04. thus, insufficient.

Intern  B
Joined: 24 Oct 2013
Posts: 22
GMAT 1: 570 Q47 V23
GMAT 2: 620 Q49 V24
GMAT 3: 630 Q47 V29
GMAT 4: 650 Q48 V31
WE: Operations (Energy and Utilities)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
QUESTION #9:

M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

1. Sufficient: Suppose M is an integer and rounding of M+N equals M means N must be less than 0.05, resulting in M. Say M=5 & N=0.04 Then M+N=5.04 rounding equals '5'. Hence N must be less than 0.05.
2. Not sufficient. N could be 0.05 which is less than 0.06 or it could be 0.07 which is > 0.06.
Retired Moderator V
Joined: 21 Jun 2014
Posts: 1068
Location: India
Concentration: General Management, Technology
GMAT 1: 540 Q45 V20
GPA: 2.49
WE: Information Technology (Computer Software)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

3
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
Lets plug the values.
if M = 0.20
and N = 0.04
then M+N = 0.24. Now if we round 0.24 to tength digit we get 0.20.

if M = 0.20
and N = 0.07
then M+N = 0.27. Now if we round 0.27 to tength digit we get 0.30.

We observe when N > 0.04 then rounding M+N will not produce 'M'. Value of N has to be <=0.04.
Hence answer to the question "is N > 0.06" is "NO". (Definite Answer).
Hence, Sufficiet!

(2) N > 0.04

Here, 0.05, 0.06, 0.07 are all greater than 0.04 and N can take any of these values.

if N = 0.05, N is less than 0.06.
if N = 0.07, N is Greater than 0.06.
Hence, In-sufficient.

Finally Answer to this question is "A".
_________________
Intern  Joined: 03 Nov 2015
Posts: 1
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04
---------------
(1) The statement implies that M + N is rounded down. Thus, N < 0.05
(2) N could be more or less than 0.06
Retired Moderator B
Status: On a mountain of skulls, in the castle of pain, I sit on a throne of blood.
Joined: 30 Jul 2013
Posts: 286
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

QUESTION #9:

M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

1:
If M is x.05 then N<0.10
With each additional unit added to the hundredths place of M, the N will come down. It will be the lowest when M=x.04, when N<0.01

Since 0.01<N<0.10, Statement 1 is not sufficient.

2:
N>0.04

Not Sufficient.

1 and 2:
0.04<N<0.10
So, N could take values between 0.04 and 0.06.

Not Sufficient

Intern  Joined: 21 Jul 2015
Posts: 29
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
1
statement (1) says M + N = M (when rounded to tenth digit)
for example 9.5 + 0.06 = 9.56, when rounding to tenths digit -> 9.6 (which is greater than M)
So, for M+N to be M after rounding to tenth digit. N should be <= 0.04

Answer to the question Is N > 0.06 ... NO
Statement (1) is sufficient
Verbal Forum Moderator V
Status: Greatness begins beyond your comfort zone
Joined: 08 Dec 2013
Posts: 2445
Location: India
Concentration: General Management, Strategy
Schools: Kelley '20, ISB '19
GPA: 3.2
WE: Information Technology (Consulting)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
1
1. M= 1.1
N= 0.04
Sum= 1.14

If decimal part of N is equal to or greater than .05 , the tenths digit will be rounded to up . That is
1.1+.05 = 1.15 .
Since , the value of M+N rounded to tenths digit is the value of M .
N>0.06 --No
Sufficient.

2. N>.04
Not sufficient. As N can take values such as - .45 , .5 -- less than .06
or N can take values .65 -- greater than .06

Not sufficient

_________________
When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. - Henry Ford
The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long
Intern  Joined: 01 Nov 2015
Posts: 8
Concentration: General Management
GMAT 1: 720 Q48 V41
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
A

1. Sufficient
As M+N rounded to tenth digit = M means N<0.05
Thus N>0.06 is No

2. Insufficient
As N>0.04, if it is 0.05 then No
if it is 0.07 then Yes
so 2nd statement not sufficient
Math Expert V
Joined: 02 Aug 2009
Posts: 8794
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
This means N<.05..suff
(2) N > 0.04
N can be .045 or .055.. giving different answers YES?NO.. insuff
A
_________________
Manager  Joined: 02 Nov 2014
Posts: 172
GMAT Date: 08-04-2015
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

(1) We know, when rounded, a digit should increase by 1 if the next (hundredths here) digit is more than 5. So, in case N>0.05, irrespective of the value of M the tenths digit of M+N would increase by 1 when rounded.
e.g. M= 1.00, N =0.06, so, M+N = 1.06 ~ 1.1 (rounded) = M.
So, N can't be >0.05 or N>0.06 is not possible. Sufficient.

(2) We know N > 0.04. N = 0.05 Ans: No. N = 0.07 Ans: Yes. Not Sufficient.

Manager  S
Status: Just redeemed Kudos for GMAT Club Test !!
Joined: 14 Sep 2013
Posts: 91
GMAT 1: 530 Q40 V23
GPA: 3.56
WE: Analyst (Commercial Banking)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1

Statement 1 says When M + N is rounded to tenths digit the value is M

Let try some values of M & N.

M = 5 and N = 0.04. M+N = 5.04 ; So after rounding 5.0 [equals to M and N<.06]
M = 5 and N = 0.05. M+N = 5.05 ; So after rounding 5.1 [NOT equals to M and N<.06]

It's observed that value of N will NOT be N>6 if the rounded to tenths digit of (M + N) is M. sufficient.

Statement 2 says N > 0.04, However no other information is given. So we can't specifically say whether n>.06. It could be N=.05; even N = .07. Dual answer. Insufficient.

So Option (A) wins.
Marshall & McDonough Moderator D
Joined: 13 Apr 2015
Posts: 1664
Location: India
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

N > 0.06?

St1: M + N = Rounded value of M to its tenth digit.
Let M = 1.45. Rounded value of M = 1.5.
N = 0.01 --> M + N = 1.5; N > 0.06? No
N = 0.09 --> M + N = 1.5; N > 0.06? Yes
Statement 1 alone is not sufficient.

St2: N > 0.04. Clearly not sufficient as we dont know the value of M.

Combining St1 and St2,
M = 1.45 and N = 0.05; M + N = 1.5; N > 0.06? No
M = 1.45 and N = 0.07; M + N = 1.5; N > 0.06? Yes
Not sufficient.

Intern  Joined: 20 Aug 2015
Posts: 3
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

Question is straightforward: Is N > 0.06

Statement 1: When M+N is rounded to tenths digit the value is M
Since rounding to the tenths digit results in M, M should have the tenths digit as the last significant number, e.g. 0.4, 2.5, etc. and rounding N to the tenths digit should result in 0.0
Now, because rounding numbers from 0.00 to 0.04999999... to the tenths digit = 0.0, we know that N < 0.05
Therefore, SUFFICIENT!

Statement 2: N > 0.04
N could be 0.045 or 0.07
Therefore, INSUFFICIENT!

Intern  Joined: 03 May 2014
Posts: 49
Concentration: Operations, Marketing
GMAT 1: 680 Q48 V34
GMAT 2: 700 Q49 V35
GPA: 3.6
WE: Engineering (Energy and Utilities)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

ANS:A
This is a DS question with direct answer YES or NO option. If from a statement you get only YES or only NO the statement is sufficient.
1. M+N is rounded to tenths digit the value is M-- Tenths digit= 0.VW--V is a tenth digit. Now whatever the value of M you take N is always less than .06.
Because rounding of .06 to tenths digit is .1 , but we are given M+N=M (rounding to tenths digit)
eg. 1.2+.02=1.22=1.2(M), 1.0+.04=1.04=1.0(M), 1.5+.04=1.54=1.5(M) So in every case we get NO as answer to the given question Is N>.06 statement is sufficient

2. N>.04 --- This statement gives YES and NO both as answer to the question Is N>.06
Taking values If N=.044 then NO but if N=.07 then YES.
Statement is not sufficient
Manager  Joined: 14 Jun 2015
Posts: 80
Location: India
GMAT 1: 680 Q46 V37
GMAT 2: 750 Q50 V40
GPA: 3.5
WE: Information Technology (Telecommunications)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

Stmt 1:
(1) When M + N is rounded to tenths digit the value is M
[M+N] = M -> This only means that N<0.1 and any thing added to the hundeths place of M did not result in rounding off to produce a number which has tenths place of the result greater than tenths place of M.
Hence N<0.05 -> sufficient

Stmt 2:
(2) N > 0.04

This does not provide any useful information on the value of N.
N can be 0.05 or 0.06 or 0.07. -> Hence Insufficient.

Ans: A
Manager  Joined: 05 Jul 2015
Posts: 91
GMAT 1: 600 Q33 V40
GPA: 3.3
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

I believe it's E

Statement 1: N> .05 or M+N >.05
Statement 2: N> .04 could be .05 or .06
Manager  Joined: 29 Apr 2014
Posts: 115
Location: Viet Nam
Concentration: Finance, Technology
GMAT 1: 640 Q50 V26
GMAT 2: 660 Q51 V27
GMAT 3: 680 Q50 V31
GMAT 4: 710 Q50 V35
GMAT 5: 760 Q50 V42
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
(1) When "M+N" is round to tenths digit, the value is M
=>:
- M has no hundredth digit, which means M is in the form of "a.b" (a and b is digits), and thus:
- "M+ N" must be in the form of "a.bc....", where c is 0,1,2,3, or 4 (so when being round to tenths digit, it becomes "a.b")

=> N is in the form of 0.0c..... (c=0,1,2,3,4) => N <0.06 => A is sufficient

(2)N>0.04: no other clues, so we don't know whether N is bigger than 0.06 or not => B is not sufficient

=> A is the correct answer
Intern  Joined: 11 May 2014
Posts: 17
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

1
M and N are positive numbers. Is N > 0.06?

(1) When M + N is rounded to tenths digit the value is M
(2) N > 0.04

(1) "When M + N is rounded to tenths digit the value is M" means that N is less than 0.05. Explanation in example:

M can be any number. Let's say 1.2. Then try N as numbers 0.05 and 0.04 to see the rounding effect.
When N=0.05 then M+N will be 1.2+0.05=1.25. Then round to tenth. The result is 1.3 not equal to M or 1.2.
When N=0.04 then M+N will be 1.2+0.04=1.24. Then round to tenth. The result is 1.2 Equal to M or 1.2. So N must be less than 0.04. It is definitely not more than 0.06. Sufficient.

(2) N > 0.04. In this case, N can be 0.07, 0.05, or 0.041. So N may or may not be more than 0.06. Insufficient.
Intern  B
Joined: 02 Oct 2012
Posts: 13
Location: India
Concentration: Operations, General Management
GMAT 1: 700 Q51 V32
GPA: 3.6
WE: Operations (Energy and Utilities)
Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0  [#permalink]

### Show Tags

2
Please refer to the attached file for the solution.

Saunak Dey
Attachments IMAG0114.jpg [ 1.73 MiB | Viewed 2584 times ] Re: Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0   [#permalink] 20 Nov 2015, 07:55

Go to page    1   2    Next  [ 25 posts ]

# Jamboree and GMAT Club Contest: M and N are positive numbers. Is N > 0   