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1985 AMC 8 Problem 14

Attempt Problem 14 of the 1985 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1985 AMC 8 solutions, or check the answer key.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

14.

The difference between a 6.5%6.5\% sales tax and a 6%6\% sales tax on an item priced at $20\$20 before tax is

$0.01\$0.01

$0.10\$0.10

$0.50\$0.50

$1\$1

$10\$10

Answer: B
Concepts:percentage
Difficulty rating: 730
Small Hint:

The difference in tax rates is 6.5%−6%=0.5%6.5\% - 6\% = 0.5\%

Big Hint:

Find 0.5%0.5\% of $20\$20

Solution:

The two taxes differ by 0.5%0.5\% of the price.

That is 0.005×$20=$0.10.0.005 \times \$20 = \$0.10.

Thus, the correct answer is B .

Problem 13#13
Full Exam
Problem 15#15

Problem 14 in Other Years

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