Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 02 May 2016, 06:38

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A student worked 20 days. For each of the amount shown in

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 30 Oct 2004
Posts: 284
Followers: 1

Kudos [?]: 28 [0], given: 0

A student worked 20 days. For each of the amount shown in [#permalink]

### Show Tags

23 Oct 2005, 11:24
9
This post was
BOOKMARKED
00:00

Difficulty:

15% (low)

Question Stats:

71% (01:47) correct 29% (01:05) wrong based on 405 sessions

### HideShow timer Statictics

Attachment:

table.gif [ 1.79 KiB | Viewed 11587 times ]
A student worked 20 days. For each of the amount shown in the first row of the table, second row gives the number of days the student earned that amount. Median amount of money earned per day for 20 days is?

A. 96
B. 84
C. 80
D. 70
E. 48
[Reveal] Spoiler: OA

_________________

-Vikram

Last edited by Bunuel on 27 Feb 2013, 03:37, edited 2 times in total.
Edited the question and added the OA
Director
Joined: 21 Aug 2005
Posts: 793
Followers: 2

Kudos [?]: 18 [0], given: 0

### Show Tags

23 Oct 2005, 11:28
2) 84

Avg of 10th & 11th number in the sequence
SVP
Joined: 05 Apr 2005
Posts: 1731
Followers: 5

Kudos [?]: 56 [0], given: 0

### Show Tags

23 Oct 2005, 11:50
median day = (20+1)/2 = 10.5 th day on which the amount of money earned was 84.
Manager
Status: And the Prep starts again...
Joined: 03 Aug 2010
Posts: 138
Followers: 2

Kudos [?]: 39 [1] , given: 20

Re: A student worked 20 days. For each of the amount shown (see [#permalink]

### Show Tags

05 Mar 2012, 08:58
1
KUDOS
1
This post was
BOOKMARKED
Arrange the amount in ascending order

48 - 2
70 - 3
80 - 4
84 - 7
96 - 4

Median = (Amount in 10th day+Amount in 11th Day)/2

= (84+84)/2
=84

B
_________________

My First Blog on my GMAT Journey

Arise, Awake and Stop not till the goal is reached

Math Expert
Joined: 02 Sep 2009
Posts: 32557
Followers: 5641

Kudos [?]: 68417 [2] , given: 9805

Re: A student worked 20 days. For each of the amount shown (see [#permalink]

### Show Tags

05 Mar 2012, 09:16
2
KUDOS
Expert's post
3
This post was
BOOKMARKED
ENAFEX wrote:
Arrange the amount in ascending order

48 - 2
70 - 3
80 - 4
84 - 7
96 - 4

Median = (Amount in 10th day+Amount in 11th Day)/2

= (84+84)/2
=84

B

A student worked 20 days. For each of the amount shown in the first row of the table, second row gives the number of days the student earned that amount. Median amount of money earned per day for 20 days is?
A. 96
B. 84
C. 80
D. 70
E. 48

A student worked 20 days.

The median of a set with even number of terms is the average of the two middle terms when arranged in ascending or descending order. Since the data (amount earned per day) is already arranged in descending order there is no need to rearrange it.

The median will be the average of the 10th and 11th values (either in ascending or descending order) --> both of those values are 84 --> the median is (84+84)/2.

_________________
Manager
Status: And the Prep starts again...
Joined: 03 Aug 2010
Posts: 138
Followers: 2

Kudos [?]: 39 [0], given: 20

Re: A student worked 20 days. For each of the amount shown in [#permalink]

### Show Tags

05 Mar 2012, 10:22
Expert.. Thanks Bunuel. I didn't notice that at all.. Got used to arranging a group in ascending order. :D
_________________

My First Blog on my GMAT Journey

Arise, Awake and Stop not till the goal is reached

Manager
Joined: 06 Jul 2011
Posts: 132
Followers: 0

Kudos [?]: 46 [0], given: 240

Re: A student worked 20 days. For each of the amount shown in [#permalink]

### Show Tags

30 May 2012, 11:53
Just in case,if the question would have asked for mean it would be $80? Please confirm.Thanks! Intern Joined: 13 Jan 2014 Posts: 2 Followers: 0 Kudos [?]: 4 [1] , given: 1 Re: A student worked 20 days. For each of the amount shown in [#permalink] ### Show Tags 03 Feb 2014, 10:43 1 This post received KUDOS For people who want a make this one a "Quickie" Look at the values given: 48 - 2 70 - 3 80 - 4 84 - 7 96 - 4 Both the highest values (84 and 96) have largest no. of days associated with them(7 and 4). Hence, your immediate reaction should be that the median is going to heavily lean towards the higher values. Now look at the options: 1)$96
2)$84 3)$80
4)$70 5)$48

It is obvious that it cannot be either of 96,48 (or) if you think about it even 70. The only decision now is between 84 and 80. Now out of these two 84 leans more towards the highest values and also has 7 days assigned to it. So........

P.S: Only meant for scenarios wherein you desperately want a " Quickie "
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 9256
Followers: 455

Kudos [?]: 115 [0], given: 0

Re: A student worked 20 days. For each of the amount shown in [#permalink]

### Show Tags

14 Feb 2015, 00:51
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 9256
Followers: 455

Kudos [?]: 115 [0], given: 0

Re: A student worked 20 days. For each of the amount shown in [#permalink]

### Show Tags

17 Mar 2016, 10:11
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: A student worked 20 days. For each of the amount shown in   [#permalink] 17 Mar 2016, 10:11
Similar topics Replies Last post
Similar
Topics:
1 A is 1.5 times as fast as B. A alone can do the work in 20 days. If A 3 19 Feb 2016, 23:22
4 A, B and C can independently do a work in 15 days, 20 days and 30 days 4 15 Oct 2015, 02:20
1 The amounts of time that three secretaries worked on a 3 07 Feb 2012, 02:12
14 Micheal and Adam can do together a piece of work in 20 days. 7 11 Mar 2008, 04:47
11 Matt and Peter can do together a piece of work in 20 days 14 11 Mar 2008, 03:56
Display posts from previous: Sort by