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In a plane there are 10 points, no three...

In a plane there are 10 points, no three are in same straight line except 4 points which are collinear, then
the number of triangles formed are

A

120

B

20

C

116

D

119

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-PERMUTATIONS & COMBINATIONS-EXERCISE-II
  1. The number of lines that can be formed from 12 points in a plane of wh...

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  2. In a plane there are 10 points, no three are in same straight line exc...

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  3. In a plane there are 10 points, no three are in same straight line exc...

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  4. Let L(1) and L(2) be two lines intersecting at P. If A(1),B(1),C(1) ar...

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

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  6. Suppose t(n) is the number of triangles formed using the vertices of a...

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

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

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  9. There are two parallel lines, one having 10 points and the other havin...

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  10. The number of triangles that can be formed with 10 points as vertices,...

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  11. A regular polygon of n sides is constructed. No. of ways 3 vertices be...

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  12. The number of triangle whose vertices are at the vertices of an ...

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  13. The maximum number of points of intersection of 8 circles is

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  14. The maximum number of points of intersection of 4 circles and 4 straig...

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  15. A regular polygon has 23 vertices and consequently 23 sides. The numbe...

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  16. Number of ways of selecting two squares having common side in a chess ...

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  17. Number of unit squares in a chess board is

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  18. In a plane there are two families of lines y = x+c, y=-x+c where ce{0,...

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  19. In a book-stall, there are 4 copies of one book, 5 copies of another a...

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  20. the number of products that can be formed with 10 prime numbers ...

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