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From among the 36 teachers in a school, ...

From among the 36 teachers in a school, one principal and one vice principal are to be appointed. In how many ways can this be done?

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RD SHARMA ENGLISH-PERMUTATIONS-All Questions
  1. Prove that: P(1,1)+2. P(2,2)+3. P(3,3)++ndotP(n , n)=P(n+1,\ n+1)-1.

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  2. In how many ways can five children stand in a queue?

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  3. From among the 36 teachers in a school, one principal and one vice ...

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  4. Four letters E, K, S an V, one in each, were purchased from a plastic ...

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  5. Four books, one each in Chemistry, Physics, Biology and Mathematics, ...

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  6. Find the number of different 4-leter words, with or without meaning, ...

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  7. How many 3 digit numbers are there, with distinct digits, with each ...

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  8. How many words, with or without meaning, can be formed by using all th...

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  9. There are two works each of 3 volumes and two works each of 2 volumes;...

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  10. There are 6 items in column A and 6 items in column B. A student is ...

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  11. How many three digit numbers are there, with no digit repeated.

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  12. How many 6-digit telephone numbers  can be constructed with digits ...

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  13. In how many ways can 6 boys and 5 girls be arranged for a group photog...

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  14. How many 3-digit even numbers can be made using the digits 1,2,3,4,...

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  15. How many 3-digit numbers can be formed by using the digits 1 to 9 if n...

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  16. Find the numbers of 4-digit numbers that can be formed using the di...

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  17. How many words can be formed form the letters of the word DAUGHTER so ...

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  18. The Principal wants to arrange 5 students on the platform such that th...

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  19. How many numbers between 400 and 1000 can be formed with the digits ...

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  20. In how many ways can the letters of the word FAILURE be arranged so ...

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