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16.Reporting that one of its many problems had been the recent extended sales slump in womenâ€™s apparel, the seven-store retailer said it would start a three-month liquidation sale in all of its stores. A. its many problems had been the recent B. its many problems has been the recently C. its many ...
Why cannot we solve the question by the following steps :
out of 6 places, first wefill all the X's. For that we have 6C3 ie 60 ways.
then for the 2 y's , we have 3 places . so selecting two places out of three places is, 3C2 ie 3 ways
this gives us 180 ways