Posted by **Nai** on Monday, October 29, 2012 at 5:27pm.

3/4 of the students in a school were girls and the rest were boys. 2/3 of the girls and 1/2 of the boys attended the school carnival. Find the total number of students in the school if 330 students did not attend the carnival.

- math -
**Steve**, Monday, October 29, 2012 at 5:43pm
g = 3b, since 3/4 = 3 * 1/4

2/3 g + 1/2 b attended

2/3 (3b) + 1/2 b = 5/2 b attended

subtract that from the total (b+g) students:

b+g - 5/2 b = 330

4b - 5/2 b = 330

3/2 b = 330

b = 220

so, g = 660

There are 880 students

660 girls and 220 boys

440 girls and 110 boys attended: 550

the remaining 330 did not attend.

Nice twist to an otherwise common exercise.

- math -
**Britney**, Monday, October 21, 2013 at 5:31pm
IDK!!!

## Answer this Question

## Related Questions

- Math - For every girl taking classes at the martial arts school, there are 3 ...
- Gen Math - A school dance has 228 students. There are 63 fewer girls than twice ...
- Math - Nicole drew a circle on the chalkboard that had a radius of 15 cm. Which ...
- MATHS - Two different schools (A and B) have the same number of pupils. The ...
- maths - fractions -in a school,3/5 of the students are girls, number of boys in...
- Math - There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that ...
- Math - There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that...
- Math - There are 1170 students in a school. The ration of girls to boys is 23 : ...
- pre-algebra - There are 1,400 students in a school.The number of girls is 3/4 ...
- Math - There are 750 students in a school. If the number of girls is 120 more ...