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Mathematics 8 Online
OpenStudy (anonymous):

You have 3 hard cover books and 5 soft cover books. How many different ways can you arrange these books on a shelf if the three hard cover books have to be next to each other?

OpenStudy (campbell_st):

ok... so treat the 3 hard cover books as 1 unit then there are 6 items to place on the shelf this can be done 6! ways and the 3 hardcover books can be arranged in 3! ways to the total number of arrangements is 6! x 3! hope this makes sense.

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