Answer:
Girl's basketball team has more seniors
Step-by-step explanation:
A varsity boy's basketball team has ratio of seniors to juniors that is 7:4.
Let there are 7x seniors and 4x juniors in boy's basketball team.
ATQ,
7x+4x = 12
11x = 12
x = 12/11
Seniors =
The varsity girl's basketball team has a ratio of seniors to juniors that is 3 to 2.
Let there are 7x seniors and 4x juniors in girl's basketball team.
3x+2x = 12
5x = 12
x = 12/5
Seniors =
As we can see that girl's basketball team has more seniors as compared to the boy's team.
Answer:
(a) 350
(b) 175
(c) 21
(d) 196
Step-by-step explanation:
Number of females = 7
Number of males = 5
Total ways of selecting r items from n items is
(a)
Total ways of selecting 3 females and 2 males.
(b)
Total ways of selecting 4 females and 1 male.
(c)
Total ways of selecting 5 females.
(d)
Total ways of selecting at least 4 females.
Total ways = 4 females + 5 females