On 5 June to 8 June, an average of 41 croissants were sold and from 9th June to 13 June, an average of 24 croissants were sold. $348 worth of croissants were sold from 14 June to 24 June. Given that a croissant was sold for $3, find the average number of croissants sold from 5 June to 24 June.
Number of croissants sold from 14 June to 24 June
= 348 ÷ 3
= 116

Number of days from 5 June to 8 June
= 8 - 5 + 1
= 4

Number of days from 9 June to 13 of June
= 13 - 9 + 1
= 5

Total number of croissants sold
= (4 x 41) + (5 x 24) + 116
= 164 + 120 + 116
= 400

Number of days from 5 June to 24 June
= 24 - 5 + 1
= 20

Average number of croissants sold
= 400 ÷ 20
= 20

Answer(s): 20