Practice

The scale on a map is 1cm: 1km. Is this a ratio or rate? Simplify if possible.

Pink paint is mixed in a ratio of white to red of 1:4. If I got the ratio wrong and mixed it as 1:6, would it be lighter or darker?

Ben and Jerry inherited $1m from their uncle. He clearly liked Ben more as he split the inheritance in the ratio of 4:1. How much did they receive each? What fraction did Ben receive?