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The number of ways in which we can selec...

The number of ways in which we can select four numbers from 1 to 30 so as to exclude every selection of four consecutive numbers is a. `27378` b. `27405` c. `27399` d. none of these

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CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
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  3. The number of ways in which we can select four numbers from 1 to 30...

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  15. The number of ways in which 12 books can be put in three shelves wi...

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  18. Let A = {x1, x2, x3, ,x7},B={y1, y2, y3} The total number of func...

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