Management Aptitude Test Dec 2019 Paper

Question : 94 of 200

Marks: +1, -0

Find the number of ways in which 8 players out of 12 players can be selected such that 2 particular players are always included and 3 particular players are always excluded.

Validate

Solution:

Of the 12 players let us delete 3 particular players. Now, there are 9 players for selection. Of these 9 , two have to be included in the team, always.
Thus, the remaining players are

(9-2=) 7

and the required players for team is

(8-2=)

6.
Now, selection can be done in

{ }^{7} C_{6}

ways.

{ }^{7} C_{6}={7 !}/{6 ! × 1 !}=7 \text " ways "

Go to Question:

Prev Question

Next Question