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The total number of arrangements of the ...

The total number of arrangements of the letters in the expression `a^(3)b^(2)c^(4)` when written at full length, is

A

1260

B

2520

C

610

D

none of these

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-PERMUTATIONS AND COMBINATIONS-Exercise
  1. There are p copies each of n different books. Find the number of ways ...

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  2. A library has two books each having three copies and three other books...

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  3. The total number of arrangements of the letters in the expression a^(3...

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  4. The total number of selections of fruit which can be made from 3 banan...

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  5. The total number of ways of dividing mn things into n equal groups, is

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  6. How many different words of 4 letters can be formed with the letters o...

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  7. ""sum(r=1)^(4)""^(21-r)C(4)+ 17C(5), is

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  8. Given that .^(n)C(n-r)+3^(n)C(n-r+1)+3. .^(n)C(n-r+2)+.^(n)C(n-r+3)=...

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  9. If n is even and ""^(n)C(0)lt""^(n)C(1) lt ""^(n)C(2) lt ....lt ""^(...

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  10. Find the number of ways in which one can post 5 letters in 7letter ...

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  11. What is the total number of 2xx2 matrices with each entry 0 or 1...

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  12. Three dice are rolled. Find the number of possible outcomes in which a...

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  13. The numbers of four different digits number that can be formed from th...

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  14. If m and n are positive integers more than or equal to 2, mgtn, then (...

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  15. Find the number of integers which lie between 1 and 10^6 and which hav...

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  16. A man invites a party to (m+n) friends to dinner and places m at one r...

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  17. The number of ways of arranging m positive and n(lt m+1) negative si...

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  18. Out of 10 consonants four vowels, the number of words that can be form...

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  19. Four couples (husband and wife) decide to form a committee of four mem...

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  20. N a certain test, there are n question. In the test, 2^(n-i) students ...

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