Mrs. Kingston’s salary is 250% of what it was 20 years ago. She says that her salary is 2.5 times what it was 20 years ago. Is she correct?

Question

I have to explain and solve i need help please Thanks 

Answer 1

Yes, she's correct.

 

But if she had had an increase of 250% in the same time period. her salary would now be 3.5 times what it had been.