Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

It is currently 20 Jul 2019, 17:17

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 John produces n units of an item in t hours, what is the value of n

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

Hide Tags

Find Similar Topics 
Retired Moderator
User avatar
G
Joined: 11 Aug 2016
Posts: 375
Reviews Badge
If John produces n units of an item in t hours, what is the value of n  [#permalink]

Show Tags

New post Updated on: 23 Sep 2018, 04:10
1
00:00
A
B
C
D
E

Difficulty:

  95% (hard)

Question Stats:

39% (02:39) correct 61% (01:58) wrong based on 88 sessions

HideShow timer Statistics


If John produces n units of an item in t hours, what is the value of n?

(1) If John produces 4 more items per hour, he would take \(\frac{1}{4}\) lesser time to produce n units of the item.

(2) If John increases his rate of production by 25 percent, the time taken by him to produce n items would be 80 percent of the original time.

_________________
~R.
If my post was of any help to you, You can thank me in the form of Kudos!!
Applying to ISB ? Check out the ISB Application Kit.

Originally posted by GmatDaddy on 23 Sep 2018, 03:25.
Last edited by Bunuel on 23 Sep 2018, 04:10, edited 1 time in total.
Renamed the topic.
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7764
Re: If John produces n units of an item in t hours, what is the value of n  [#permalink]

Show Tags

New post 23 Sep 2018, 11:10
1
1
If John produces n units of an item in t hours, what is the value of n?

(1) If John produces 4 more items per hour, he would take \(\frac{1}{4}\) lesser time to produce n units of the item.
Let X be produced every hour, so xt=n
Now X+4 being produced each hour, time reduces by t/4, so (X+4)*3t/4=n
So xt=(x+4)*3t/4.......x=(x+4)*3/4......x=12
Nothing about t or n..
Insufficient

(2) If John increases his rate of production by 25 percent, the time taken by him to produce n items would be 80 percent of the original time.
This would be the case always..
xbecomes 1.25x, time will become 0.8t to make same number of units.
1.25x*0.8t=xt=n
Insufficient

Combined
Statement II does not get anything new info..
And statement I is not sufficient
Insufficient

E
_________________
Intern
Intern
avatar
Joined: 22 Sep 2018
Posts: 11
Re: If John produces n units of an item in t hours, what is the value of n  [#permalink]

Show Tags

New post 25 Sep 2018, 04:33
GmatDaddy wrote:
If John produces n units of an item in t hours, what is the value of n?

(1) If John produces 4 more items per hour, he would take \(\frac{1}{4}\) lesser time to produce n units of the item.

(2) If John increases his rate of production by 25 percent, the time taken by him to produce n items would be 80 percent of the original time.


Statement 1: The equation becomes
((n/t)+4)/(n/t)= t/4
We cannot find n without the value of t.
Insufficient
Statement 2:
4/5 t= 80/100 t
Does not tell us anything
Insufficient
Statement 1 and 2 together does not say anything new.
E
GMAT Club Bot
Re: If John produces n units of an item in t hours, what is the value of n   [#permalink] 25 Sep 2018, 04:33
Display posts from previous: Sort by

If John produces n units of an item in t hours, what is the value of n

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





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