Last visit was: 14 Sep 2024, 19:33 It is currently 14 Sep 2024, 19:33
Decision Tracker
My Rewards
Unanswered
Active Topics
New posts
New comers' posts
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
avatar
michaelkalend
Intern
Intern
Joined: 21 Mar 2017
Posts: 15
Own Kudos [?]: 22 [8]
Given Kudos: 6
Send PM
Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   23 May 2017, 00:58
1
Kudos
7
Bookmarks
00:00
A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

91% (01:20) correct 9% (02:08) wrong based on 202 sessions
Hide Show DIFFICULTY AND TIMER STATISTICS
Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results in a certain pure metal. In how many days of mining will the total amount of pure metal produced at the quarry be equal to the daily amount of ore mined?

A 10
B 100
C 250
D 400
E 1,000
ShowHide Answer
Official Answer
C
User avatar
P
amanvermagmat
Retired Moderator
Joined: 22 Aug 2013
Posts: 1181
Own Kudos [?]: 2585 [2]
Given Kudos: 459
Location: India
Send PM
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   23 May 2017, 01:41
1
Kudos
1
Bookmarks
Out of 2500 tons of ore, daily amount of pure metal = 0.4% of 2500
= 0.4/100 * 2500 = 10 tons

Daily pure metal is 10 tons, We have to find number of days where it will be equal to 2500 tons
2500/10 = 250. Hence C answer
User avatar
P
JeffTargetTestPrep
Target Test Prep Representative
Joined: 04 Mar 2011
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Posts: 3036
Own Kudos [?]: 6838 [1]
Given Kudos: 1646
Send PM
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   22 Feb 2018, 17:28
1
Bookmarks
Expert Reply
michaelkalend
Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results in a certain pure metal. In how many days of mining will the total amount of pure metal produced at the quarry be equal to the daily amount of ore mined?

A 10
B 100
C 250
D 400
E 1,000

Each day 2,500 x 0.4/100 = 25 x 0.4 = 10 tons of pure metal is mined.

So it will take 2500/10 = 250 days to mine 2500 tons of pure metal.

Answer: C
User avatar
L
stne
SVP
SVP
Joined: 27 May 2012
Posts: 1722
Own Kudos [?]: 1552 [0]
Given Kudos: 641
Send PM
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   17 Dec 2018, 07:22
michaelkalend
Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results in a certain pure metal. In how many days of mining will the total amount of pure metal produced at the quarry be equal to the daily amount of ore mined?

A 10
B 100
C 250
D 400
E 1,000

Dear Moderator,
Found this PS question, while going through the DS section of Arithmetic , hope we can move it to the proper place, Thank you.
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 95507
Own Kudos [?]: 658644 [0]
Given Kudos: 87257
Send PM
CAT Tests Forum Quiz Mode
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   17 Dec 2018, 08:01
Expert Reply
stne
michaelkalend
Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results in a certain pure metal. In how many days of mining will the total amount of pure metal produced at the quarry be equal to the daily amount of ore mined?

A 10
B 100
C 250
D 400
E 1,000

Dear Moderator,
Found this PS question, while going through the DS section of Arithmetic , hope we can move it to the proper place, Thank you.
___________________
Moved to PS. Thank you.
User avatar
L
IanStewart
GMAT Tutor
Joined: 24 Jun 2008
Posts: 4127
Own Kudos [?]: 9614 [0]
Given Kudos: 96
 Q51  V47
Send PM
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   12 Jul 2021, 04:45
Expert Reply
0.4% = 4/1000 = 1/250, and if we're getting 1/250th of what we want each day, it will take 250 days.

The "2500 tons" in the question is irrelevant and there's no need to use it here.
User avatar
S
DanTheGMATMan
Tutor
Joined: 02 Oct 2015
Posts: 265
Own Kudos [?]: 56 [0]
Given Kudos: 9
Send PM
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink] Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results   30 May 2024, 06:39
Expert Reply
­Watch that .4 PERCENT:

GMAT Club Bot
gmatclubot
Re: Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results [#permalink]
30 May 2024, 06:39
Moderator:
Bunuel
Math Expert
95507 posts