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Find the number of ways in which two sma...

Find the number of ways in which two small squares can be selected on the normal chessboard if they are not in same row or same column.

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CENGAGE ENGLISH-PERMUTATIONS AND COMBINATIONS-All Questions
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  2. Find the number of natural numbers which are less than 2xx10^8 and whi...

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  3. Find the number of ways in which two small squares can be selected on ...

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  4. Find the number of ways of selection of at least one vowel and one ...

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  5. There are p copies each of n different books. Find the number of ways ...

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  6. A person is permitted to selected at least one and at most n coins fro...

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  7. Let S = {1,2,3,.............. n} and A={(a ,b)"|"1lt=a ,blt=n}=SxxS. ...

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  8. A person invites a group of 10 friends at dinner and sits (i) 5 on a r...

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  9. Find the number of ways in which 10 different diamonds can be arranged...

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  10. Six persons A, B, C, D, E, F, are to be seated at a circular table. In...

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  11. Find the number of ways in which six persons can be seated at a round ...

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  12. Find number of seven-digit number in the form of a b c d efg(g,f,e , e...

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  13. Find the maximum number of points of intersection of 6 circles.

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  14. Find the number of different words that can be formed using all the le...

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  15. The number 916238457 is an example of a nine-digit number which con...

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  16. There are 10 points on a plane of which 5 points are collinear. Also, ...

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  17. Find the total number of rectangles on the normal chessboard.

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  18. There are 10 points on a plane of which no three points are collinear....

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  19. Find the maximum number of points of intersection of 7 straight lines ...

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  20. m equi spaced horizontal lines are intersection by n equi spaced verti...

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