Q. 244.2( 9 Votes )

A sports team of

Answer :

Formula:- (i)ⁿC_r

A team of 11 students can be constituted in the following two ways:-

case(i):- 5 students from class X I and 6 from X II

case(ii):- 6 students from class X I and 5 from X II

the number ways can the team be constituted: -

Case(i)+case(ii)

=²⁰C_5. ²⁰C₆+²⁰C_6.²⁰C₅

=2(²⁰C_5. ²⁰C₆)

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