B1 B2 B3
12 0 0
11 1 0
10 1 1
10 2 0
9 3 0
9 2 1
8 4 0
8 3 1
8 2 2
7 5 0
7 4 1
7 3 2
6 6 0
6 5 1
6 4 2
6 3 3
5 5 2
5 4 3
4 4 4
Total number of possibilities=19.
Number of favourable case =5
Required probability =195
If 12 identical balls are to be placed in 3 identical boxes, then the probability that one of the boxes contains exactly 3 balls is
Held on 4 Apr 2015 · Verified 6 Jul 2026.
22(31)11
195
55(32)10
220(31)12
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