There are 480 children in a hall. 3 8 of them are boys. How many more girls than boys are there?
There are 3/8 x 480 = <<3/8*480=180>>180 boys.
So, there are a total of 480 - 180 = <<480-180=300>>300 girls.
Therefore, there are 300 - 180 = <<300-180=120>>120 more girls than boys. Answer: \boxed{120}.
To find out how many more girls than boys there are, we first need to determine the number of boys and girls.
First, let's calculate the total number of boys in the hall:
Number of boys = (3/8) x 480 = 180
Next, we'll calculate the number of girls:
Number of girls = Total number of children - Number of boys
Number of girls = 480 - 180 = 300
To determine how many more girls than boys there are, we subtract the number of boys from the number of girls:
Number of girls - Number of boys = 300 - 180
So, there are 120 more girls than boys in the hall.
To find out how many more girls than boys are there, we first need to calculate the number of boys and girls separately.
The problem states that 3/8 of the children are boys. So, to find the number of boys, we need to multiply the total number of children (480) by 3/8:
Number of boys = (3/8) * 480
= (3/8) * 480/1
= (3 * 480) / (8 * 1)
= 1440/8
= 180
So, there are 180 boys in the hall.
Now, to find the number of girls, we need to subtract the number of boys from the total number of children:
Number of girls = Total number of children - Number of boys
= 480 - 180
= 300
There are 300 girls in the hall.
To find the difference between the number of girls and boys, we subtract the number of boys from the number of girls:
Difference = Number of girls - Number of boys
= 300 - 180
= 120
Therefore, there are 120 more girls than boys in the hall.