Last year a worker saved 5% of her annual salary. This year, she made 20% more money than last year and she saved 6% of her salary. The amount she saved this year was what percent of the amount she saved last year?  Answers:
A) 136%  B) 140%  C) 144%  D) 148%  E) 152%
Let x be the worker's salary last year.   Last year, she saved 0.05x.   This year, she saved 0.06(1.2x)=0.072x   0.072x/0.05x=144%   The answer is 144%.
<result>C</result>
Last year a worker saved 5% of her annual salary. This year, she made 20% more money than last year and she saved 6% of her salary. The amount she saved this year was what percent of the amount she saved last year?