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suneja
there are 6 stores in town that had a total of 20 visitors on a particular day. However only 10 people went shopping that day; some people visited more than one store. If 6 people visited exactly two stores each and everyone visited at least one store, what is largest no of stores anyone could have visited. a)6 b)8 c)5 d)9 e)2
ans to tis is 5 cud any one tell me how
there were 10 people who made 20 visits 6 of the 10 people visited exactly 2 stores. That means they made 2*6=12 visits that leaves 4 people who made 8 visits ( 10-6 people and 20-12 visits) everyone visited at least 1 store. that uses up 4 visits we have 4 visits unaccounted for. If the same person made these visits (along with the 1 we just counted), that would be 5 visits maximum.