To find out how many doughnuts are plain glazed, we need to subtract the number of doughnuts with chocolate icing, white icing with sprinkles, and pink icing from the total number of doughnuts.
3/8 of the doughnuts have chocolate icing, which is (3/8) * 12 dozen = 3 * 12 = <<3/8*12=4.5>>4.5 dozen doughnuts.
1/4 of the doughnuts have white icing with sprinkles, which is (1/4) * 12 dozen = 3 dozen doughnuts.
1/6 of the doughnuts have pink icing, which is (1/6) * 12 dozen = 2 dozen doughnuts.
Therefore, the total number of doughnuts with icing is 4.5 + 3 + 2 = 9.5 dozen doughnuts.
Since there are 12 dozen doughnuts in total, the number of plain glazed doughnuts is 12 - 9.5 = 2.5 dozen doughnuts.
Since there are 12 doughnuts in a dozen, 0.5 dozen is equal to 0.5 * 12 = 6 doughnuts.
Therefore, the number of plain glazed doughnuts is 2.5 dozen * 12 doughnuts/dozen = 30 doughnuts.
The answer is D) 30
Joelle ordered 12 dozen doughnuts for the honor roll breakfast at the middle school.
• 3/8
of the doughnuts have chocolate icing.
• 1/4
of the doughnuts have white icing with sprinkles.
• 1/6
of the doughnuts have pink icing.
• The rest are plain glazed doughnuts.
How many doughnuts are plain glazed doughnuts?
Responses
A 114
B 76
C 54
D 30
1 answer
1 answer