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CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
- If all the words formed from the letters of the word HORROR are arra...
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- Prove that (2n!)/(n!)={1.3.5.....(2n-1)}2^n
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- Find the equation of a straight line perpendicular to the line 2x + 5y...
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- The letters of word ZENITH are written in all possible ways. If all ...
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- In a class tournament, all participants were to plan different game...
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- How many different words can be formed with the letters of the word "M...
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- There are 720 permutations of the digits 1, 2, 3, ,4 ,5, 6. Suppose th...
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- Find the equation of the line passing through (0, 4) and parallel to t...
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- Find the equation of the line that is perpendicular to 3x + 2y – 8 = 0...
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- How many different numbers of 4 digits can be formed from the digits 0...
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- How many six-digit odd numbers, greater than 6,00,000, can be formed ...
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- Eleven animals of a circus have to be placed in eleven cages (one in e...
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- If A={x|x is prime number and x<30}, find the number of different rati...
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- Find the sum of first 22 terms, of an A.P. in which d = 7 and 22th ter...
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- How any 4-letters words, with or without meaning, can be formed out of...
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- Find the numbers of positive integers from 1 to 1000, which are div...
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- Find the number of ways in which two Americans, two British, one Ch...
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- Find the number of permutations of letters a ,b ,c ,d ,e ,f,g taken a...
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- Find the number of n digit numbers, which contain the digits 2 and 7, ...
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- There are 4 balls of different colours and four boxes of colours same ...
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