Teaching Haryana (HPSC) PGT Mock Test 2024 Mathematics Permutations and Combinations Fundamental Principles of Counting
A batch comprises of 4 red and 7 green uniform boys. Figure out the number of methods can a squad of 5 unit be picked if the squad has (i) at least one red and one green uniform boy (ii) at least 3 red uniform boys?
1
(i) 144, (ii) 27
2
(i) 441, (ii) 27
3
(i) 441, (ii) 91
4
(i) 144, (ii) 81
5
Question Not Attempted