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There are 5 different Jeffrey Archer books, 3 differentSidney Sheldon books and 6 different John Grishambooks. The number of ways in which at least onebook can be given away is(a) 2^10 – 1(b) 2^11 – 1(C) 2^12 – 1(d) 2^14 – 1 |
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Answer» Answer: d) Step-by-step EXPLANATION: Of total of 14 books you can either give a book or keep it. You have 2 options for each book. But you REMOVE ONE option, that is when ALL books are kept. HENCE d) |
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