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प्रश्न
Choose the correct alternative:
The number of ways in which a host lady invite 8 people for a party of 8 out of 12 people of whom two do not want to attend the party together is
पर्याय
2 × 11C7 + 10C8
11C7 + 10C8
12C8 – 10C6
10C6 + 2!
उत्तर
12C8 – 10C6
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