Grade 12th passAlgebra
1-In how many ways can r distinct object be distributed in 6 boxes, with at least boxed empty?2-an URN contains 15 balls, 8 of which are red and 7 are black. In how many ways can: 7 balls be chosen so that at least 5 are red?
1-In how many ways can r distinct object be distributed in 6 boxes, with at least boxed empty?
2-an URN contains 15 balls, 8 of which are red and 7 are black. In how many ways can: 7 balls be chosen so that at least 5 are red?
