Question

Craig likes to collect vinyl records. Last year he had 10 records in his collection. Now he has 12 rerecords. What is the percent increase pf his collection?

Answer 1

12 is a 20% increase over 10

Answer 2

His collection increased in a 20%.

Explanation:

We can solve this with the rule of three.

If 100% represents 10 records, what percentage would be for 12 records?

`x=12(100\%)/(10) =120\%`

So, if we subtract
`120\%-100\%`, it's gonna result in a difference of 20%, which means that 12 represents a 20% more, or his collection increased in a 20%.