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Permutation and Combination

From 6 gentlemen and 4 ladies a committee of 5 is to be formed. In how many ways can this be done so as to include at least 3 ladies?

In how many ways can eight people be seated in a round table if two people insist in sitting next to each other?

If C(8,r) - C(7,3) = C(7,2) , then r = a. 3 b. 3 or 5c. 5 or 7 d. 7

Class Twelve

9 Questions • 1 Notes
- Social
  
  0 Questions • 1 Notes
  - शिक्षा र रोजगार
- Maths
  
  9 Questions • 0 Notes

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