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PSEB-PERMUTATIONS AND COMBINATIONS-EXERCISE
- Evaluate (n!)/((n-r)!) , when n= 9,r= 5.
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- How many 3-digit numbers can be formed by using the digits 1 to 9 if n...
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- How many 4-digit numbers are there with no digit repeated?
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- How many 3-digit even numbers can be made using the digits 1, 2, 3, 4,...
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- Find the number of 4-digit numbersthat can be formed using the digits ...
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- From a committee of 8 persons, in how many ways can we choose a chairm...
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- Find n if "^(n-1)P3 : "^nP4 =1:9.
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- Find r if "^5Pr =2 "^6P(r-1).
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- Find r if "^5Pr = "^6P(r-1).
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- How many words, with or without meaning, can be formed using all the l...
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- How many words, with or without meaning can be made from the letters o...
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- How many words, with or without meaning can be made from the letters o...
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- How many words, with or without meaning can be made from the letters o...
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- In how many of the distinct permutations of the letters in MISSISSIPPI...
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- In how many ways can the letters of the word PERMUTATIONS be arranged ...
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- In how many ways can the letters of the word PERMUTATIONS be arranged ...
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- In how many ways can the letters of the word PERMUTATIONS be arranged ...
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- If "^nC8 = "^nC2 , find "^nC2 .
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- Determine n if "^(2n)C3 : "^nC3 =12:1
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- Determine n if "^(2n)C3 : "^nC3 = 11 : 1
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