1991 AHSME Problems/Problem 9
Problem
From time to time a population increased by , and from time to time the population increased by . Therefore, from time to time the population increased by
Solution
The scale factors for the increases are and , so the overall scale factor is . To convert this to a percentage, we subtract 1 and then multiply by 100, giving , or .
See also
1991 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 8 |
Followed by Problem 10 | |
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