Joelle ordered 12 dozen doughnuts for the honor roll breakfast at the middle school.
• 38
of the doughnuts have chocolate icing.
• 14
of the doughnuts have white icing with sprinkles.
• 16
of the doughnuts have pink icing.
• The rest are plain glazed doughnuts.
How many doughnuts are plain glazed doughnuts?
To find the number of plain glazed doughnuts, we need to subtract the number of doughnuts with chocolate icing, white icing with sprinkles, and pink icing from the total number of doughnuts.
Total number of doughnuts = 12 dozen = 12 x 12 = <<12*12=144>>144 doughnuts
Number of doughnuts with chocolate icing = (38/100) x 144 = 54.72 doughnuts (rounded to the nearest whole number) = 55 doughnuts
Number of doughnuts with white icing and sprinkles = (14/100) x 144 = 20.16 doughnuts (rounded to the nearest whole number) = 20 doughnuts
Number of doughnuts with pink icing = (16/100) x 144 = 23.04 doughnuts (rounded to the nearest whole number) = 23 doughnuts
Number of plain glazed doughnuts = Total number of doughnuts - Number of doughnuts with chocolate icing - Number of doughnuts with white icing and sprinkles - Number of doughnuts with pink icing
= 144 - 55 - 20 - 23
= 46 doughnuts
Therefore, there are 46 plain glazed doughnuts.