A library has an average of 390 visitors on sundays and 210 on other days. the average number of visitors per day in a month of 30 days beginning with a sunday is
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average=total/days
=5250(210×25)+1950(390×5)/30
=7200/30=240
240 visitors per day
=5250(210×25)+1950(390×5)/30
=7200/30=240
240 visitors per day
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