The percentages of boys in two classes are 30% and 60%. The numbers of students in the two classes are 30 and 45 respectively. What is the percentage of boys in the two classes combined?1. 902. 483. 104. None of the above5. 30

Class Z has 50% more students than class Y. Number of girls in class Y is equal to number of boys in class Z. The percentage of girls is the same in both classes. What percentage of the student group are boys?

: In a class of 30 students, 18 are girls. What percentage of the class are boys?

In a class, 60% of students are from India and 50% of the students are girls. If 30% of the Indian students are girls, then what percentage of foreign students are boys?

In a class, 15% of total number of students failed in Science, 5% of total number of students failed in Maths and 10% of total number of students failed in both.How much percentage of students passed in both Maths and Science?70%80%60%90%

There are some students (male + female) in Class A and Class B in CCA School. In class A, females are 30% of total students of class A. In class B, number of male and female students are equal and male students in class B are thrice the number of female students of Class A.If 10% of male students and 20% of female students from Class A left the school and male and female students in class B increased by 25% and 30% respectively, then total male students of Class A and B together are what percent of total students of Class A and B together?