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In how many ways can 4 different books, ...

In how many ways can 4 different books, one each in chemistry, physics, biology and mathematics, be arranged on a shelf?

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RS AGGARWAL-PERMUTATIONS-EXERCISE 8D
  1. In how many ways can 5 children stand in a queue?

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  2. In how many ways can 6 women draw water from 6 wells, if no well remai...

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  3. In how many ways can 4 different books, one each in chemistry, physics...

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  4. Six students are contesting the election for the presidentship of the...

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  5. It is required to seat 5 men and 3 women in a row so that the women o...

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

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  7. Five letters F, K, R, T and V one in each were purchased from a plasti...

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  8. Ten students are participating in a race. In how many ways can the fir...

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  9. There are six periods in each working day of the school. In how many ...

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  10. In how many ways can 6 pictures be hung from 4 picture nails on a wall...

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  11. How many words, with or without meaning, can be formed using all the ...

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  12. Find the number of different 4-letter words (may be meaningless) that ...

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  13. How many words can be formed from the letters of the word SUNDAY? How ...

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  14. How many words beginning with C and ending with Y can be formed by usi...

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  15. Find the number of permutations of the letters of the word 'ENGLISH'. ...

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  16. In how many ways can the letters of the word 'HEXAGON' be permuted? In...

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  17. How many words can be formed out of the letters of the word, ORIENTAL,...

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

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  19. In how many arrangements of the word 'GOLDEN' will the vowels never o...

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  20. In how many different ways can the letters of the word MACHINE be a...

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