There are 5 different letters and 5 letter boxes of same size shape and colors. How many method are

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04 Feb 2011 letter and letter box

There are 5 different letters and 5 letter boxes of same size shape and colors. How many method are possible to post the letters?

OPtion

1) 76
2) 56
3) 57
4) 67
5) 64
6) 68
7) 65
8) 69
9) 72
10) None of the above

Solution

Possible combination
Combinations No of method
5,0,0,0,0 1
4,1,0,0,0 5
3,1,1,0,0 10
3,2,0,0,0 10
2,1,1,1,0 10
2,2,1,0,0 15
1,1,1,1,1 1
--------------------------
52

Correct Option: 10 Best Solution (0)