1993 AMC 8 Problem 13
Attempt Problem 13 of the 1993 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 1993 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
13.
The word “HELP” in block letters is painted as a shaded region with strokes unit wide on a by rectangular sign. Each letter is units wide with a -unit gap between letters, as shown. The area of the unshaded portion of the sign, in square units, is
Answer: D
Small hint:
The whole sign is square units
Big hint:
Count the shaded unit squares making up each letter, then subtract the total from
Solution:
The full sign has area square units. Counting the shaded unit squares in each letter gives and for a shaded total of
The unshaded area is
Thus, the correct answer is D .
Problem 13 in other years
- 1985 AMC 8
- 1986 AMC 8
- 1987 AMC 8
- 1988 AMC 8
- 1989 AMC 8
- 1990 AMC 8
- 1991 AMC 8
- 1992 AMC 8
- 1994 AMC 8
- 1995 AMC 8
- 1996 AMC 8
- 1997 AMC 8
- 1998 AMC 8
- 1999 AMC 8
- 2000 AMC 8
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