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The number of ways in which a 7 people c...

The number of ways in which a 7 people can sit around a round table is

A

7!

B

6!

C

42

D

5!

Text Solution

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The correct Answer is:
B
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NEW JOYTHI PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXERCISE
  1. The number of ways in which a couple can sit with 10 guests in a row i...

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  2. The number of ways in which 7 boys and 3 girls may be arranged in a ro...

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  3. The number of ways in which a 7 people can sit around a round table is

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  4. The number of ways in which 7 people can sit around a table if two per...

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  5. C (18, r) = C (18, r + 2). Then C(r, 5) =

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  6. C(13,5)=

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  7. C(13,4)=

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  8. C(10,9)=

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  9. C(15,12)=

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  10. The number of ways of selecting 6 objects from eight objects is

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  11. The total number of ways of selecting 3 balls from a bag containing 7 ...

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  12. The total number of ways of selecting a team of 3 men and 4 women from...

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  13. The value of ""^(n)P(1)+(""^(n)P(2))/(2!)+(""^(n)P(3))/(3!)+......+(""...

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  14. The number of ways of selecting 3 objects from eight object is

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  15. A candidate is required to answer 7 questions out of 12 questions, whi...

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  16. The number of diagonals in a polygon of seven sides is

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  17. A polygon has 77 diagonals. The number of sides of the polygon is

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  18. If a set of m paralled lines intersect another set of n parallel lines...

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  19. Everybody in a room shakes hands with everybody else. The total n...

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  20. There are 10 points in a plane no three of which are collinear except ...

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