Difference between revisions of "1985 AJHSME Problems/Problem 21"
Mathisfun04 (talk | contribs) (→Solution) |
Sakshamsethi (talk | contribs) (→Solution) |
||
Line 7: | Line 7: | ||
==Solution== | ==Solution== | ||
− | Assume his salary is <math>100</math> dollars. Then in the next year, he would have <math>110</math> dollars, and in the next he would have <math>121</math> dollars. The next year he would have <math>133.1</math> dollars and in the final year, he would have <math>146.41</math>. As the total increase is greater than <math>45\%</math>, the answer is <math>\boxed{\text{E}}</math> | + | Assume his salary is originally <math>100</math> dollars. Then, in the next year, he would have <math>110</math> dollars, and in the next, he would have <math>121</math> dollars. The next year he would have <math>133.1</math> dollars and in the final year, he would have <math>146.41</math>. As the total increase is greater than <math>45\%</math>, the answer is <math>\boxed{\text{E}}</math>. |
− | + | ~sakshamsethi | |
==See Also== | ==See Also== |
Latest revision as of 20:16, 26 September 2020
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 originally dollars. Then, in the next year, he would have dollars, and in the next, he would have dollars. The next year he would have dollars and in the final year, he would have . As the total increase is greater than , the answer is .
~sakshamsethi
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.