Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
Home  >>  CBSE XI  >>  Math  >>  Permutations and Combinations
0 votes

There are 10 professors and 20 lecturers out of whom a committee of 2 professors and 3 lecturer is to be formed.Find (d) In how many ways a particular lecturer is excluded

$\begin{array}{1 1}(A)\;10C_2\times 19C_3\\(B)\;12C_2\times 18C_3\\(C)\;8C_2\times 18C_3\\(D)\;\text{None of these}\end{array} $

Can you answer this question?

1 Answer

0 votes
Total no of professor =10
Total no of lecturer =20
No of ways a particular lecturer is excluded =$10C_2\times 19C_3$
Hence (D) is the correct answer.
answered May 19, 2014 by sreemathi.v

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App