In a school there are 362 boys and 257 girls. 403 more girls joined the school. How many more girls than boys does the school have?
First, we need to find the total number of students in the school. 362 boys is the same as 362/1 boys and 257 girls is the same as 257/1 girls, so we can say that the total number of students in the school is 619/1 students. 

Next, we need to find the total number of students in the school after 403 more girls joined. 403 more girls is the same as 403/1 more girls, so we can say that the total number of students in the school after 403 more girls joined is 619/1 + 403/1 students. 

Now, we need to find the difference between the total number of students in the school after 403 more girls joined and the total number of students in the school. 619/1 + 403/1 students is the same as 1022/1 students and 619/1 students is the same as 619/1 students, so the difference is 1022/1 - 619/1 students. 

We can simplify 1022/1 - 619/1 students to just 403/1 students, so we can say that the difference is 403/1 students. 

Therefore, we can say that there