Last year a worker saved 4% of her annual salary. This year, she made 10% more money than last year and she saved 5% of her salary. The amount she saved this year was what percent of the amount she saved last year? Choose the most appropriate option.
A) 137.5%  B) 142.5%  C) 147.5%  D) 152.5%  E) 157.5%
Let x be the worker's salary last year.   Last year, she saved 0.04x.   This year, she saved 0.05(1.1x)=0.055x   0.055x/0.04x=55/40=137.5%   The answer is 137.5%.
<result>A</result>
Last year a worker saved 4% of her annual salary. This year, she made 10% more money than last year and she saved 5% of her salary. The amount she saved this year was what percent of the amount she saved last year?