1990 AJHSME Problems/Problem 17
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Problem
A straight concrete sidewalk is to be feet wide,
feet long, and
inches thick. How many cubic yards of concrete must a contractor order for the sidewalk if concrete must be ordered in a whole number of cubic yards?
Solution
This is a yard by
yard by
yard sidewalk, so its volume in yards is
Since concrete must be ordered in a whole number of cubic yards, we need
.
See Also
1990 AJHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 16 |
Followed by Problem 18 | |
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