Answer:
1) 35%
2) 73%
3) 23%
4) 57%
5) 13%
6) 37%
Explanation:
The general solution is to grab the total, which is 100%, and subtract the percentage of the given problems to find the solution. In some problems you have to add some percentages togheder to finish the problem.
So, in the first problem you subtract the percentage of girls to the whole class percentage: 100%-65%=35%.
In the second, whole package minus the red ones: 100%-27%= 73%
In the third, group of children minus swimmers: 100%-78%=22%
In the fourth, 100%-43%= 57%.
In the fifth, there is won percentage, loss percentage, and the remaining percentage you need to add to make 100% is the tie percentage.
So if we do the reverse (subtracting both win and loss percentage to have the tie percentage): 100%-45%-42%=13%.
In the sixth, it's the same thing as the fifth problem: subtracting the basketball and hockey from the whole children percentage that chose the sport: 100%-35%-28%=37%.
I hope this helped