.
Forty percent of the students at the basketball club are girls. There are 72 boys at the club. How many girls are there
~~~~~~~~~~~~~~~~~
1. Since forty percents of the students at the basketball club are girls, 60% are boys.
So, you have this equation 0.6x = 72, where x is the total number of students at the basketball club.
The solution of this equation is x = = 120.
Thus there are 120 students in the club.
2. Hence, the number of girls is 120 - 72 = 48.
There is a bunch of lessons on percentage problems
- Percentage problems
- Percentage word problems (Type 1 problems, Finding the Part)
- Percentage word problems (Type 2 problems, Finding the Rate)
- Percentage word problems (Type 3 problems, Finding the Base)
- More complicated percentage problems
in this site.