1954 AMC 12 Problem 7

Attempt Problem 7 of the 1954 AMC 12 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 1954 AMC 12 solutions, or check the answer key.

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

A housewife saved

\$2.50

in buying a dress on sale. If she spent

\$25

for the dress, she saved about:

8\%

9\%

10\%

11\%

12\%

Add the savings to the sale price to recover the original price

Compute

\frac{2.50}{27.50}

as a percentage

The original price was

\$27.50.

The fraction saved was

\frac{2.50}{27.50}=\frac1{11}\approx0.0909,

or about

9\%.

Thus, the correct answer is B.

Problem 7 in other years