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Find the number of ways in which 5 boys ...

Find the number of ways in which 5 boys and 5 girls be seated in a row so that
no two girls sit together

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PATHFINDER-PERMUTATION AND COMBINATION-QUESTION BANK
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  2. The number of words can be formed with the letters of the word PATALIP...

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  3. The number of integral solutions of a+b+c=0 ,age(-5),bge(-5),cge(-5) i...

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  4. if the letters of the word SCHOOL are arranged as in a dictionary then...

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  5. If the number of all numbers less than 2000000 which can be written us...

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  6. if the sum of the digits occuring in units place of all the 5 digits n...

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  7. How many different words can be formed with the letters of the word OR...

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  8. How many different words can be formed with the letters of the word OR...

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  9. How many different words can be formed with the letters of the word OR...

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  10. Find the number of ways in which 5 boys and 5 girls be seated in a row...

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  11. Find the number of ways in which 5 boys and 5 girls be seated in a row...

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  12. Find the number of ways in which 5 boys and 5 girls be seated in a row...

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  13. out of 18 points in a plane no three are in the same straight lines ex...

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  14. out of 18 points in a plane no three are in the same straight lines ex...

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  15. Find the sum of all numbers greater than 10,000 by using the digits 0,...

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  16. For an examination a candidate has to select 7 subjects from 3 differe...

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  17. A man appears in an examination in which there are four papers with a ...

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  18. There are n is straight lines in a plane in which no two are parallel ...

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  19. How many numbers less than 20,000 can be made from 1,2,3,4,5,6,7,0?

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  20. if underset(k=1)oversetnsum(k^2+1)k! =1999xx2000! then prove that n=19...

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