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In how many ways can six students be sea...

In how many ways can six students be seated in a line so that two particular students do not sit together?

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PATHFINDER-PERMUTATION AND COMBINATIONS-QUESTION BANK
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  2. How many each consisting of five different letters can be formed by ta...

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  3. In how many ways can six students be seated in a line so that two part...

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  4. Find the value of x if ^(4x-2)P2=6

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  5. In how many ways can 5 boys and 3 girls be arranged so that no two gir...

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  6. Find the number of different arrangements with the letters of the word...

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  7. How many numbers of 4 digit greater than 6000 can be formed with the d...

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  8. A book store has 2 different books each having 3 volumes and 3 other d...

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  9. From 5 oranges, 4 mangoes and 2 apples, how many different selection o...

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  10. For a certain class, in how many different routines can the 5 differen...

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  11. An examine is required to answer 6 questions out of 12 questions which...

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  12. Find the number of permutations of the letters of the words 'FORECAST'...

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  13. How many triangles can be formed by joining the angular points of a de...

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  14. Show that 1+^1P1+2.^2P2+3.^3P3+....+n.^nPn=^(n+1)P(n+1).

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  15. Out of 14 articles, 10 are of the same type and each of the remaining ...

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  16. Find the rank of the word 'MAKE' when its letters are arranged as in a...

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  17. Find the number of ways in which the letters of the word 'INTERMEDIATE...

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  18. How many seven-digit numbers are there, the sum of whose digit is even...

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  19. How many five-digit telephone numbers are there, the sum of whose digi...

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  20. How many 4 digit numbers can be formed from the digits 1, 1, 2, 2, 3, ...

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