Question

Thomas increased the amount of water she gives her plants from 2 cups to 2 1/2 cups. By what percentage did Thomas increase the amount of water?

Answer 1

Ok so any % change is simply just final over initial. It would also be helpful to convert your fractions into decimals. So, 2.5/2 will give you 1.25. Move the decimal to the right twice, you get 125. So now it’s at 125% of the FULL value, so subtract 100 and it increased by 25%. :)