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There are 50 stations on a railway l...

There are 50 stations on a railway line . How many different kinds of single 1st class tickets must be printed so as to enable a passenger to go from one station to another

A

2450

B

2230

C

2480

D

2135

Text Solution

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1A (PERMUTATIONS )
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  10. The number of arrangements by arranging the letters of the word ...

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  11. The number of arrangements by arranging the letters of the word ...

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  12. The number of 3 letter words formed that containing atlest one ...

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  13. Find the number of 5 letter words that can be formed using the letters...

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  14. The number of ways of arranging 6 players to throw the cricket b...

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  15. The different words beging and ending with a vowel that can ma...

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  16. The number of arrangements that can be made by using all the le...

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  17. 9 balls are to placed in 9 boxes : and 5 of the balls cannot ...

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  19. The number of arrangements than can be formed by taking all the ...

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  20. The number of ways in which 5 boys and 3 girls can sit in a r...

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