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A box contains 18 computer disks 5 of which are known to

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Question: A box contains 18 computer disks, 5 of which are known to have bad sectors. In how many ways can 4 disks be selected, without replacement and without regard to order, so that the following conditions are satisfied? In how many disks can be selected so that none have bad sectors?

Reference no: EM13593993

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