1988 AHSME Problems/Problem 10
Problem
In an experiment, a scientific constant is determined to be with an error of at most . The experimenter wishes to announce a value for in which every digit is significant. That is, whatever is, the announced value must be the correct result when is rounded to that number of digits. The most accurate value the experimenter can announce for is
Solution
If added together, we have: This rounds to . If they subtracted, we have: This rounds to . Therefore, we have the answer to be .
See also
1988 AHSME (Problems • Answer Key • Resources) | ||
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