8 professors and 11 students are available to serve on committee. (a) How many ways can a committee of four people be selected? (b) How many committees can be formed if each committee must have 3 professors and 4 students?

a) 3876   b) 18480

Step-by-step explanation:

Given , The number of professors = 8

The number of students are available = 11

Total persons = 8+11=19

a) The number of ways to select 4 people =

Hence, the number of ways to select 4 people  = 3876.

b) Number of ways to choose 3 professors and 4 students =

Hence, the numbers of ways to form a committee with 3 professors and 4 students = 18480.

is means division by fractions

step-by-step explanation:

step-by-step explanation:

jbjuiuhuhuuy