Serenity has a toy car collection. She keeps some in a display case and the rest on the

wall.

104

of her toy cars are on the wall, and 74% of her toy cars are in the display

case. What is the total number of toy cars in Serenity’s collection?

wall.

104

of her toy cars are on the wall, and 74% of her toy cars are in the display

case. What is the total number of toy cars in Serenity’s collection?

If 74% are in the display, then 100% – 74% = 26% are hung on the wall.

This means 104 cars is 26% of her collection.

To find the total collection divide the number on the wall by the percentage of the collection:

104/0.26 = 400

The total number of her collection is 400 cars.