what are the steps to solving this story problem?

Question

The numeral 1 through 10 are each written on a separate sheet of paper and dropped into a hat.  A girl is going to pick a slip out of the hat without looking.  What are the chances of her picking a number greater than 7?

Answer 1

there are 10 numbers; 1,2,3,4,5,6,7,8,9,10

3 numbers are greater than 7; 8,9,10

P=3/10 or 0.3 or 30%