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In how many ways the letters of the word...

In how many ways the letters of the word RAINBOW be arranged ?

A

5040

B

4050

C

8040

D

6050

Text Solution

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The correct Answer is:
A
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section A Objective type questions (One option is correct )
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  2. The value of n, if ""^(n)P(5) = 20.""^(n)P(3) , is

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  3. In how many ways the letters of the word RAINBOW be arranged ?

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  4. If ""^(56)P(r + 6) : ""^(56)P(r + 3) = 30800 then r is

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  5. How many numbers are greater than 50000 can be formed with the digits ...

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  6. In how many ways can 10 soldiers stand in two rows having 5 soldiers i...

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  7. In how many ways 6 students and 4 teachers be arranged in a row so tha...

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  8. If ""^(n)C(x) = 56 and ""^(n)P(x) = 336 , then n is equal to

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  9. How many arrangements can be made out of the letters of the word COMMI...

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  10. How many different words can be made with the letter of the wor NAINIT...

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  11. How many numbers greater than a million can be formed with the digits ...

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  12. How many different signals cab be given using any number of flags from...

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  13. In how many ways can a committee of 4 men and 3 women be appointed fro...

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  14. In how many ways 7 members forming a committee out of 11 be selected s...

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  15. ""^(15)C(9)-""^(15)C(6)+""^(15)C(7)-^(15)C(8) equals to

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  16. The number of permulations of n different objects taken K at a time , ...

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  17. The number of words which can be formed out of the letters of the word...

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  18. The number of parallelograms that can be formed from a set of four par...

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  19. The number of ways in which three girls and ten boys can be seated in ...

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