Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
78% (01:54) correct
22%
(02:03)
wrong
based on 320
sessions
History
Date
Time
Result
Not Attempted Yet
A growing chocolate company recently upgraded its production plant, such that its new production company capacity was between 8 and 9 times as great as its old production capacity. Which of the following could represent the company's original production capacity in kilograms per hour and its new production capacity in kilograms per hour, respectively?
1. 13 & 107
2. 48 and 379
3. 67 and 591
A) 1 only
B) 2 only
C) 1 & 2 only
D) 1 and 3 only
E) 1,2 and 3.
Can someone please explain step by step procedure to solve this question?
1. 13 & 107
2. 48 and 379
3. 67 and 591
A) 1 only
B) 2 only
C) 1 & 2 only
D) 1 and 3 only
E) 1,2 and 3.
Can someone please explain step by step procedure to solve this question?
14 Dec 2013, 14:58
Kudos
Bookmarks
enigma123
Dear enigma123,
I'm happy to help with this.
This question is a good no-calculator work-out with basic arithmetic. Make sure you are practicing no-calculator math every day. See this article for more on number sense:https://magoosh.com/gmat/2012/number-sense-for-the-gmat/
Basically, want to calculator 8 times the smaller number and 9 times the smaller number, and verify whether the larger number is between these two.
With the first, we can do ordinary multiplication. This should be too bad:
8*13 = 104
9*13 = 117
and 107 is between these two. Choice #1 is possible.
For the next two, the smaller number of the pair is a bit larger, so we will use anther trick.
Obviously, 10*48 = 480. Start there.
Now, subtract 48. 480 - 48 = 432. That must be 9*48
Now, subtract 48 again. 432 - 48 = 384. That must be 8*48
Notice that 379 is not between these two. Therefore, choice #2 is not possible.
For the third line, obviously 67*10 = 670.
Subtract 67. 670 - 67 = 603. That must be 9*67.
Notice that we don't even need to do the next subtraction, because 591 is very close to 603, and we subtract 67 from 603, we will be way below 591. 591 is clearly less than 9*67 and more than 8*67, so choice #3 is possible.
Choices #1 & #3 are possible. Answer = (D).
Does all this make sense?
Mike
21 Aug 2014, 01:07
Kudos
Bookmarks
enigma123
13 * 8 = 104 & 13 * 9 = 117 ............ PASS
48 * 8 = 404 .......... Fails (No further calculation required)
67 * 8 = 536 & 67 * 9 = 603 .......... PASS
Answer = E
