Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Mathematics Permutations and Combinations Permutation Function and its properties
What is the number of ways in which one can post 5 letters in 7 letters boxes?
1
75
2
35
3
57
4
More than one of the above
5
None of the above