On 3 December to 6 December, an average of 48 roses were sold and from 7th December to 11 December, an average of 27 roses were sold. $226 worth of roses were sold from 12 December to 22 December. Given that a rose was sold for $2, find the average number of roses sold from 3 December to 22 December.
Number of roses sold from 12 December to 22 December
= 226 ÷ 2
= 113

Number of days from 3 December to 6 December
= 6 - 3 + 1
= 4

Number of days from 7 December to 11 of December
= 11 - 7 + 1
= 5

Total number of roses sold
= (4 x 48) + (5 x 27) + 113
= 192 + 135 + 113
= 440

Number of days from 3 December to 22 December
= 22 - 3 + 1
= 20

Average number of roses sold
= 440 ÷ 20
= 22

Answer(s): 22