Difference between revisions of "1985 AJHSME Problems/Problem 21"
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so the percent is smaller than <math>40\% </math> and the only choice left is <math>\boxed{\text{A}}</math>. | so the percent is smaller than <math>40\% </math> and the only choice left is <math>\boxed{\text{A}}</math>. | ||
It is 4 raises, not 3. | It is 4 raises, not 3. | ||
| + | Thus, the correct answer is a 46.41 percent increase, or <math>\boxed{\text{E}}</math>. | ||
==See Also== | ==See Also== | ||
Revision as of 14:23, 8 November 2015
Problem
Mr. Green receives a 
raise every year. His salary after four such raises has gone up by what percent?
Solution
Assume his salary is 100 dollars then the next year he would have 110 dollars then the next year he would have 121 dollars then the next year he would have 133.1 dollars so therefore it is A
so the percent is smaller than 
and the only choice left is 
.
It is 4 raises, not 3.
Thus, the correct answer is a 46.41 percent increase, or 
.
See Also
| 1985 AJHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 20 |
Followed by Problem 22 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AJHSME/AMC 8 Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
