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

Question

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?

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2 months 2021-10-08T04:02:07+00:00 2 Answers 0 views 0

1. Answer: 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

thus Joshua has 200 movies  and Robbie 253 movies

Step-by-step explanation:

if Robbie owns 15% more than Rebecca , then he holds

Movies of Robbie = (1+0.15)*Movies of Rebecca = 1.15 * 220 movies = 253 movies

Then we know that Rebecca has 10% more than Joshua , therefore

Movies of Rebecca = (1+0.10)*Movies of Joshua

220 movies = 1.10 * Movies of Joshua

Movies of Joshua = 220 movies/ 1.10 = 200 movies

thus Joshua has 200 movies and Robbie 253 movies