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RD SHARMA ENGLISH-PERMUTATIONS-All Questions
- Find\ x in each of the following: x/(10 !)=1/(8!)+1/(9!)
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- Find\ x in each of the following: 1/(6!)+1/(7!)=x/(8!)
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- Convert the following products into factorial: 5. 6. 7. 8. 9. 10
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- Convert the following products into factorial: 3.6.9.12.15.18
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- Convert the following products into factorial: (n+1)(n+2)(n+3).......(...
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- Convert the following products into factorial: 1. 3. 5. 7. 9 (2n-1)
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- Which of the following are true: (2+3)!=2!+3!
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- Which of the following are true: \ (2xx3)! =2!xx3!
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- Prove that: n !(n+2)=n !+(n+1)!
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- if(n+2)! =60[(n-1)]!,find n
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- If (n+1)! =90[(n-1)!], fin d n
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- If (n+3)! =56[(n+1)! ] find n
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- Prove that ((2n+1)!)/(n !)=2^n{1. 3. 5 .........(2n-1)(2n+1)}
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- There are 3 candidates for a classical, 5 for a Mathematical,, and 4 ...
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- The flag of a newly formed forum is in the form of three blocks, each ...
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- Find the number of 4 letter words, with or without meaning which can b...
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- Given 4 flags of different colours, how many different signals can be ...
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- Find the number of different signals that can be generated by arrangin...
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- How many words (with or without meaning) of three distinct letters of ...
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- Find the total number of ways of answering 5 objective type questions,...
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