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an ice cream parlour has ice creams in eight different varieties. no of ways of choosing ice creams taking atleast two ice creams of the same variety is

an ice cream parlour has ice creams in eight different varieties. no of ways of choosing ice creams taking atleast two ice creams of the same variety is

Grade:12th pass

2 Answers

Meet
137 Points
6 years ago
How many ice cream has to be selected????? i.e. Suppose 8 different variety`s are as follows - a,b,c,d,e,f,g,h . Now if we select atleast 2 from a then further we can`t take any step.
Deepak Gupta
15 Points
4 years ago
  • We have to choose at least 2 of same kind. So there would be two different cases:
  • 2 same 1 different, i.e. 8C1×7C1
  • All different, i.e. 8C1
  • Total =56+8=64

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