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Number of ways of selecting 8 balls out of an infinite number of white, red, yellow and brown balls is

Number of ways of selecting 8 balls out of an infinite number of white, red, yellow and brown balls is

Grade:12th pass

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago
same as

x1 + x2 + x3 + x4 = 8

where 0<= xi <= 8

hence its a very similar problem as 4 beggars and 8 identical coins

hence ans is 11C3

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