Permutation and CombinationHard
Question
Using digits 3,4,5,6,7,8 how many numbers between 3000 and 4000 can be formed which are divisible by 5 and same digit is not repeated ?
Options
A.60
B.12
C.120
D.124
More Permutation and Combination Questions
The number of signals that can be made with 3 flags each of different colour by hoisting 1 or 2 or 3 above the other, is...Four dice are rolled. The number of possible outcomes in which at least one die shows 2 is-...A set contains (2n + 1) elements. The number of subset of the set which contain at most n elements is : -...The number of ways in which 20 persons can sit on 8 chair round a circular table is-...If α = mC2, then αC2 is equal to -...