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      Question

      Anuj has eight friends whom he wants to invite for

      dinner. In how many ways can he invite at least four friends?
      A 169 Correct Answer Incorrect Answer
      B 163 Correct Answer Incorrect Answer
      C 219 Correct Answer Incorrect Answer
      D 191 Correct Answer Incorrect Answer

      Solution

      Total friends of Anuj =8 Anuj can invite at least four friends=8C4 +8C5 +8C6 +8C7 +8C8 =70+56+28+8+1 =163

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