Problem:
Which of the following is closest to the product (.48017)(.48017)(.4801.7)?
Answer Choices:
A. 0.011
B. 0.110
C. 1.10
D. 11.0
E. 110
Solution:
The desired product is about 21​⋅21​⋅21​=81​=0.125.
OR
The desired product is about (.5)(.5)(.5)=0.125.
Answer: B​.
The problems on this page are the property of the MAA's American Mathematics Competitions