What is the quickest method to solve this?
Bethany bought an unspecified number of chocolate boxes, each of which costs $371. The clerk at the counter incorrectly punches the cost as $731 while calculating the total. Bethany thereby had to shell out an additional $9,360. What was the actual value of the bill?
Answer Choices
A. $10,842
B. $9,646
C. $9,872
D. $9,360
E. $9,000
Thanks,
StrawberryCow
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
Number System- actual value of the bill
This topic has expert replies
-
StrawberryCow
- Junior | Next Rank: 30 Posts
- Posts: 20
- Joined: Tue Oct 29, 2013 8:38 pm
- Followed by:2 members
-
GMATGuruNY
- GMAT Instructor
- Posts: 15539
- Joined: Tue May 25, 2010 12:04 pm
- Location: New York, NY
- Thanked: 13060 times
- Followed by:1906 members
- GMAT Score:790
Extra charge per box = 731-371 = 360.StrawberryCow wrote:What is the quickest method to solve this?
Bethany bought an unspecified number of chocolate boxes, each of which costs $371. The clerk at the counter incorrectly punches the cost as $731 while calculating the total. Bethany thereby had to shell out an additional $9,360. What was the actual value of the bill?
Answer Choices
A. $10,842
B. $9,646
C. $9,872
D. $9,360
E. $9,000
Thanks,
StrawberryCow
Number of boxes = (total extra charge)/(extra charge per box) = 9360/360 = 26.
Amount paid = (number of boxes)(charge per box) = 26*731.
Since 6*1 = 6, the correct answer choice must has a units digit of 6.
The correct answer is B.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
