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IF a polygon of n sides has 275 d...

IF a polygon of n sides has 275 diagonals then n=

A

25

B

35

C

20

D

15

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
  1. A polygon has 54 diagonals , then the number of its sides is :

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  2. A regular polygon of n sides has170 digonals . Then n=

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  3. IF a polygon of n sides has 275 diagonals then n=

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  4. The number of triangle that can be formed by joining the vertices ...

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  5. The number of triangle that can be formed by joining the angula...

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

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  7. The number of rectangles formed in a chess board is

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  8. If one square choosed randomly from chess board. Th probability of get...

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  9. The number of rectangles which are not squares formed in a ches...

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  10. The number of ways of selecting two having common side in a ches...

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  11. From the two systems of lines x-h=0 , h=0,1,2,3,4,5 and y-k=0,1,2,3...

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  13. The number of ways of dividing 10 books into 3 group of 5,3,2,...

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  14. The number of ways of dividing 100 scoutes into 3 squads of 50...

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  15. The number of ways of dividing 15 cards into 3 group of 5 car...

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  16. The number of ways that 12 prizes can be divided among 4 stude...

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  18. The number of ways that can be divided a pack of 52 cards among...

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