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There are 12 points in a plane in which ...

There are 12 points in a plane in which 6 are collinear. Number of different straight lines that can be drawn by joining them, is a.51 b.52 c.132 d.18

A

51

B

52

C

132

D

18

Text Solution

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The correct Answer is:
B
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ARIHANT MATHS ENGLISH-PERMUTATIONS AND COMBINATIONS -Exercise For Session 6
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  5. If a,b, and c are positive integers such that a+b+cle8, the number of ...

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  7. Find the total number of positive integral solutions for (x ,y ,z) suc...

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  8. There are 12 points in a plane in which 6 are collinear. Number of dif...

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  9. 4 points out of 11 points in a plane are collinear. Number of differen...

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  10. ABCD is a convex quadrilateral and 3, 4, 5, and 6 points are marked...

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  11. There are 10 points in a plane of which no three points are colline...

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  13. There are 2n points in a plane in which m are collinear. Number of qua...

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  14. In a polygon the number of diagonals is 54. The number of sides of the...

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  15. In a polygon, no three diagonals are concurrent. If the total numbe...

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  16. If n lines are drawn in a plane such that no two of them are parallel ...

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  17. Six straight lines are in a plane such that no two are parallel & no t...

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  18. The parallelogram is cut by two sets of m lines parallel to its sides....

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  19. The number of rectangles excluding squares from a rectangle of size 11...

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  20. The number of ways the letters of the word PERSON cann be placed in th...

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