Robbie owns 15% more movies then Rebecca, and Rebecca owns 10% more movies than Joshua. If Rebecca 220 movies how many movies do Robbie and Joshua each have?

Robbie gas 253 movies and Joshua has 198 movies.

Step-by-step explanation:

Robbie owns 15% more movies then Rebecca. If Rebecca 220 movies, it means that the number of movies that Robbie has more than Rebecca is

15/100 × 220 = 0.15 × 220 = 33

Therefore, the number of movies that Robbie has is

220 + 33 = 253 movies.

Rebecca owns 10% more movies than Joshua. It means that the number of movies that Rebecca owns more that Joshua is

10/100 × 220 = 0.1 × 220 = 22

Therefore, the number of movies that Joshua has is

220 - 22 = 198 movies