[qquad [=,190-20=170],[" 6.The number of ways of choosing "10" objects "],[" out of "31" objects of which "10" are identical and "],[" the remaining "21" are distinct,is "]]

The number of ways of selecting 6 objects from eight objects is

The number of selection of n objects from 2n objects of which n are identical and the rest are different is

Statement 1: Number of ways of selecting 10 objects from 42 objects of which 21 objects are identical and remaining objects are distinct is 2^(20)dot Statement 2: ^42 C_0+^(42)C_1+^(42)C_2++^(42)C_(21)=2^(41)dot

Statement 1: Number of ways of selecting 10 objects from 42 objects of which 21 objects are identical and remaining objects are distinct is 2^(20)dot Statement 2: ^42 C_0+^(42)C_1+^(42)C_2++^(42)C_(21)=2^(41)dot

Statement 1: Number of ways of selecting 10 objects from 42 objects of which 21 objects are identical and remaining objects are distinct is 2^(20). Statement 2: 42.Statement 2: 42C_(0)+^(42)C_(1)+^(42)C_(2)+...+^(42)C_(21)=2^(41)

Statement 1: Number of ways of selecting 10 objects from 42 objects of which 21 objects are identical and remaining objects are distinct is 2^(20)dot Statement 2: ^42 C_0+^(42)C_1+^(42)C_2++^(42)C_(21)=2^(41)dot