Answers

2014-05-22T18:49:53+05:30
A particular player is selected every time
so 10 players are chosen from 14
that is C^{14}_{10}= \frac{14!}{4!10!}=1001
0
what no restriction? how can a player be selected twice
i,ans 11 players can be selected out of 15 in 15C11 ways
= 15C4 = (15.14.13.12) / (1.2.3.4) = 1365 ways.
ii,ans Since a particular player must be included, we have to select 10 more out of remaining 14 players. This can be done in
14C10 = 14C4 = (14.13.12.11)/(1.2.3.4) = 1001 ways.
not twice
oh then ok
got it