At Carl's birthday party there were 11 boys, 9 girls, and 5 adults. What percentage of:
a. the children are boys?
b. the children are girls?
c. all the guests are adults?
d. all the guests are girls?
a. 11/20 = 0.55 = 55%
Do the others the same way.
There are 11 + 9 = 20 children
of those 20 children 11 are boys
11/20 = 55/100 = 55% of the children are boys
Now you try the others.
To answer these questions, we need to calculate the percentages based on the given information:
a. To find the percentage of boys among the children, we need to determine the total number of children first.
Total number of children = number of boys + number of girls = 11 + 9 = 20.
Now, we can find the percentage of boys among the children by dividing the number of boys by the total number of children and multiplying by 100.
Percentage of boys among the children = (Number of boys / Total number of children) x 100
= (11 / 20) x 100
= 55%.
So, the percentage of boys among the children is 55%.
b. Similarly, to find the percentage of girls among the children, we divide the number of girls by the total number of children and multiply by 100.
Percentage of girls among the children = (Number of girls / Total number of children) x 100
= (9 / 20) x 100
= 45%.
Therefore, the percentage of girls among the children is 45%.
c. To find the percentage of all guests who are adults, we divide the number of adults by the total number of guests (boys + girls + adults) and multiply by 100.
Percentage of all guests who are adults = (Number of adults / Total number of guests) x 100
= (5 / (11 + 9 + 5)) x 100
= (5 / 25) x 100
= 20%.
So, the percentage of all guests who are adults is 20%.
d. Finally, to find the percentage of all guests who are girls, we divide the number of girls by the total number of guests and multiply by 100.
Percentage of all guests who are girls = (Number of girls / Total number of guests) x 100
= (9 / (11 + 9 + 5)) x 100
= (9 / 25) x 100
= 36%.
Hence, the percentage of all guests who are girls is 36%.