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How many numbers each lying between 100 ...

How many numbers each lying between 100 and 1000 can be formed with the digits 2,4,6,8,9 , each of the digit occurring once in each number ?

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How many numbers lying between 100 and 1000 can be formed with the digits 0,3,4,6,8,9?

How many numbers each lying between 1000 and 10000 can be formed with the digits 1,2,3,4,5,6,7 (no digit being repeated in any number) ?

How many numbers lying between 3000 and 4000 can be formed with the digits 0,1,2,3.4 , if repetitions of digits being allowed ?

How many numbers lying between 100 and 1000 can be formed with the digits 0, 1, 2, 3, 4, 5, if the repetition of the digits is not allowed?

How many numbers lying between 3000 and 4000 can be formed with the digits 1,2,3,4,5 and 6? (No repetition of digit is allowed .)

How many numbers greater than a million can be formed with the digits 3,4,4,0,3,5,4 ?

How many numbers greater than 1000000 can be formed by using the digits 1, 2,0, 2, 4, 2,4?

Find the number of number between 300 and 3000 that can be formed with the digits 0,1,2,3,4 and 5, no digit being repeated in any number.

Find the numbers less than 1000 and divisible by 5 which can be formed with the digits 0,1,2,3,4,5,6,7,8,9 each digit not occurring more than once in each number .

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CHHAYA PUBLICATION-PERMUTATION AND COMBINATION -EXERCISE 7A ( Very Short Answer Type Questions )
  1. If .^(9)P(5)+5.^(9)P(4)=^(10)P(r), find r.

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  2. In how many different ways can 4 prizes be distributed among 10 studen...

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  3. On entering a certain town ,4 travellers find that there are 5 hotels ...

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  4. 12 ferry - steamers ply between Chandpal Ghat and Botanical Garden . I...

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  5. There are 12 stations on a certain railway line . How many different k...

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  6. How many different permutations can be made by taking all the letters ...

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  7. Find the number of ways in which the letters of the word DRAUGHT can b...

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  8. How many numbers each lying between 100 and 1000 can be formed with th...

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  9. Find the number of different perpmutations that can be made out of the...

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  10. Find the number of different perpmutations that can be made out of the...

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  11. Find the number of different perpmutations that can be made out of the...

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  12. Find the number of different perpmutations that can be made out of the...

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  13. Find the number of different perpmutations that can be made out of the...

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  14. In how many ways can the letters of the name Gavaskar be arranged so t...

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  15. In how many ways can the results of 3 successive football matches be d...

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  16. In how many ways can a person post 5 letters in 4 letters boxes ?

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  17. In how many ways four prizes - one for recitation , one for sports , o...

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  18. How many three figure numbers can be formed with the digits 1,2,3,4,5,...

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  19. An unbiased coin is tossed 5 times in succession . How many different...

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  20. A six faced unbiased dice is rolled 4 times . How many different outc...

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