SOLUTION: In what ratio must 25 be increased to become 40?

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Question 770062: In what ratio must 25 be increased to become 40?
Answer by ramkikk66(644) About Me  (Show Source):
You can put this solution on YOUR website!
25 must be increased by 15 to become 40.
Ratio of increase means "by what fraction has 25 increased to become 40"? So we 
need to express the increase (15) as a part of 25.
15 expressed as a part of 25 = 15/25 = 0.6 = 60%
So the ratio of increase is 0.6