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- Find the number of different signals that can be generated by arrangin...
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- How many two-digit even numbers can be formed from the digits 1,2, 3, ...
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- Find the number of 4 letter words, with or without meaning, which can ...
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- Find the remainder when 1!+2!+3!+4!+.......+n ! is divided by 15, if n...
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- Find the total number of ways in which n distinct objects can be put i...
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- Find the total number of two-digit numbers (having different digits), ...
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- There are n locks and n matching keys. If all the locks and keys are t...
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- Poor Dolly’s T.V. has only 4 channels, all of them quite boring. Hence...
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- Find the number of distinct rational numbers x such that oltxlt1 and x...
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- Three dice are rolled. Find the number of possible outcomes in which a...
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- Case 4 In how many ways 14 identical toys be distributed among three b...
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- In how many ways can 15 identical blankets be distributed among six ...
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- The number of non-negative integral solutions of x1+x2+x3+4x4=20 is
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- In an examination, the maximum mark for each of the three papers is 50...
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- In how many different ways can 3 persons A, B, C having 6 one-rupee ...
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- In how many ways the sum of upper faces of four distinct die can be fi...
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- In how many ways 3 boys and 15 girls can sits together in a row such ...
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- Find the number of distinct throws which can be thrown with n six-face...
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- If the 11 letters A, B, ..., K denote an arbitrary permutation of he ...
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- In how many ways can four people, each throwing a dice once, make a su...
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