1.

There are 10 professors and 20 students out of whom a committee of 2 professors and 3 students is be formed. Find the number of ways in which this can be done. Further find in how many of these committees : (i) A particular professor is included. (ii) A particular student is included. (iii) A particular student is excluded

Answer»

There are 10 professors and 20 students out of whom a committee of 2 professors and 3 students is be formed. Find the number of ways in which this can be done. Further find in how many of these committees :

(i) A particular professor is included.

(ii) A particular student is included.

(iii) A particular student is excluded



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