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How many stainght lines can be draw...

How many stainght lines can be drawn by joning 10 points on a circle ?

A

`""^(55)C_(8)xx""^(5)C_(2)`

B

`""^(8)C_(3)xx""^(5)C_(3)`

C

`344`

D

45

Text Solution

Verified by Experts

The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
  1. There are 20 points in plane no three of which are collinear ....

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  2. There are 21 points in a plane no three of which are collinear...

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  3. How many stainght lines can be drawn by joning 10 points on a ...

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  4. There are n points in a plane no three of which are in the same...

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  5. There are n points in a plane no three of which are in the same...

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  6. The number of lines that can be formed from 12 points is a plan...

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  7. Out of thirty points in a plane , eight of them are collinear . T...

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  8. There are 12 points in a plane ,5 only of which are collinear . T...

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  9. The sides AB,BC,CA of a Delta ABC have 3,4and 5 interior poin...

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  10. The number of triangles formed by joining the vertices of a hexag...

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  11. IF T(n) dentoes the number of triangle formed with n points in ...

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  12. Let T(n) be the number of all possible triangles formed by joi...

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  13. Tm denotes the number of triangles that can be formed with the ...

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  14. Given 5 line segments of lengths 2,3,4,5,6 units then the number ...

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  15. The greatest number of points of intersection of 8 lines and 4 cir...

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  16. In plane there are 37 straight lines , of which 13 pass throug...

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  17. A set of m parallel lines another another set of n parallel l...

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  18. The number of diagonals for an n sided polygon is

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  19. The number of diagonal for an n sided polygon with 10 sides is

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  20. The number oif diagonals of an octagons is

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