1994 AJHSME Problems/Problem 17
Problem
Pauline Bunyan can shovel snow at the rate of cubic yards for the first hour, cubic yards for the second, for the third, etc., always shoveling one cubic yard less per hour than the previous hour. If her driveway is yards wide, yards long, and covered with snow yards deep, then the number of hours it will take her to shovel it clean is closest to
Solution
Her driveway has cubic yards of snow. After the first hour she would have cubic yards, then , , , , , and cubic yard after the seventh hour. It will take her a little more than seven hours to shovel it clean, which is closest to .
See Also
1994 AJHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 16 |
Followed by Problem 18 | |
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