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If one square choosed randomly from chess board. Th probability of getting black colour is

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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
  1. The number of triangle whose vertices are at the vertices of an ...

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

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

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

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

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  6. 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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  7. The number of ways of dividing 12 boys into 2 groups of 7,5 boys r...

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

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

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

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

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  12. In how many ways can 52 cards be divided among 4 players so t...

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

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  14. In how many can a collection of 30 books be divided into two g...

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  15. The number of ways that 7 objects can be divided into 4 sets 3 ...

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  16. 20 passengers are to travel by a double decked bus which can ...

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  17. 27 passengers are to travel by a double bus which can accommoda...

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  18. A double decked bus can accommodate 100 passengers 40 in the u...

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  19. At an election three wards of a town of a are canvassed by ...

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  20. A boats crew consists of 16 men , 6 of whom can only row on o...

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