There is an international tennis tournament at your local stadium and Gemma has been selected to work as a ball girl.

Out of 225 applicants, 1 5 were successful.

Of the successful applicants, 20% couldn't make all the training sessions and were discounted.

How many were selected to work at the tournament?

45 applicants were selected to work in the international tennis tournament at your local stadium, but just 36 (Gemma included) completed all the training sessions.

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Number of applicants to work in the international tennis tournament = 225

Number of successful applicants = 1/5 of 225

Number of successful applicants that couldn't make all the training sessions and were discounted = 20%

2. How many selected to work at the tournament?

For answering this question, we will make the following calculations:

Number of successful applicants = 1/5 of 225 (1/5 = 0.2)

Number of successful applicants = 225 * 0.2

Number of successful applicants = 45

Number of successful applicants that couldn't make all the training sessions and were discounted = 20% of 45

Number of successful applicants that couldn't make all the training sessions and were discounted = 0.2 * 45 = 9

45 applicants were selected to work in the international tennis tournament at your local stadium, but just 36 (Gemma included) completed all the training sessions.