If the sales tax on a $12.00 purchase is $0.66, what is the sales tax on a $20.00 purchase?
A. $1.08
B. $1.10
C. $1.16
D. $1.18
E. $1.20
Is there a strategic approach to this question? Any experts can help please?
If the sales tax on a $12.00 purchase is $0.66, what is the
This topic has expert replies
-
- Moderator
- Posts: 426
- Joined: Tue Aug 22, 2017 8:48 pm
- Followed by:1 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
- elias.latour.apex
- Master | Next Rank: 500 Posts
- Posts: 228
- Joined: Thu Apr 20, 2017 1:02 am
- Location: Global
- Thanked: 32 times
- Followed by:3 members
- GMAT Score:770
A scalar solution path is the most direct method of solving this problem.
Since $0.66 is the tax for $12, the tax for $20 must be 20/12 of $0.66, a fraction that reduces to 10/6.
$0.66 * 10/6 = 0.11 * 10 = $1.10, which is answer choice (B).
Since $0.66 is the tax for $12, the tax for $20 must be 20/12 of $0.66, a fraction that reduces to 10/6.
$0.66 * 10/6 = 0.11 * 10 = $1.10, which is answer choice (B).
Elias Latour
Verbal Specialist @ ApexGMAT
blog.apexgmat.com
+1 (646) 736-7622
Verbal Specialist @ ApexGMAT
blog.apexgmat.com
+1 (646) 736-7622
GMAT/MBA Expert
- [email protected]
- Elite Legendary Member
- Posts: 10392
- Joined: Sun Jun 23, 2013 6:38 pm
- Location: Palo Alto, CA
- Thanked: 2867 times
- Followed by:511 members
- GMAT Score:800
Hi ardz24,
We're told that the sales tax on a $12.00 purchase is $0.66. We're asked what the sales tax would be on a $20.00 purchase. The math behind this question can be approached in a variety of ways (depending on how you want to think about the ratios involved.
Since sales tax is a fixed percentage of the purchase price, we could set up the ratio in the following way:
$12/$20 = $0.66/X
3/5 = $0.66/X
3X = $3.30
X = $1.10
Final Answer: B
GMAT assassins aren't born, they're made,
Rich
We're told that the sales tax on a $12.00 purchase is $0.66. We're asked what the sales tax would be on a $20.00 purchase. The math behind this question can be approached in a variety of ways (depending on how you want to think about the ratios involved.
Since sales tax is a fixed percentage of the purchase price, we could set up the ratio in the following way:
$12/$20 = $0.66/X
3/5 = $0.66/X
3X = $3.30
X = $1.10
Final Answer: B
GMAT assassins aren't born, they're made,
Rich
GMAT/MBA Expert
- Scott@TargetTestPrep
- GMAT Instructor
- Posts: 7271
- Joined: Sat Apr 25, 2015 10:56 am
- Location: Los Angeles, CA
- Thanked: 43 times
- Followed by:29 members
If we let n = the sales tax on the 20 dollar purchase, we can create a proportion and solve for n:ardz24 wrote:If the sales tax on a $12.00 purchase is $0.66, what is the sales tax on a $20.00 purchase?
A. $1.08
B. $1.10
C. $1.16
D. $1.18
E. $1.20
0.66/12 = n/20
20 x 0.66 = 12n
13.2 = 12n
13.2/12 = n
1.1 = n
Thus, the sales tax is $1.10.
Answer: B
Scott Woodbury-Stewart
Founder and CEO
[email protected]
See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews