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?
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If the sales tax on a $12.00 purchase is $0.66, what is the
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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).
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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
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Scott@TargetTestPrep
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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
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