Problem:
Julie is preparing a speech for her class. Her speech must last between one-half hour and three-quarters of an hour. The ideal rate of speech is words per minute. If Julie speaks at the ideal rate, which of the following number of words would be an appropriate length for her speech?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
For one-half hour: words.
For three-quarters of an hour: words.
Only falls in this interval.
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions