A stall was selling flowers. ¹₅ of the earnings are from the sale of 10 daisies and 10 marigolds. Of the rest of the earnings, ²₃ are from the sale of daisies and ¹₃ are from the sale of marigolds. Each marigold costs twice as much as each daisy. How many flowers were sold?

10 daisies and 10 marigolds	Rest of the earnings		Total earnings
1x3	4x3
	Roses	Carnations
	2x4	1x4
3	8	4	15

Fraction of the earnings left after the sale of 10 daisies and 10 marigolds
= 1 - ¹₅
= ⁴₅ 

The rest of the earnings is repeated. LCM of 4 and 3 is 12.

Cost of 1 daisy = 1 u
Cost of 1 marigold = 2 u

Cost of 10 daisies = 10 x 1 u = 10 u
Cost of 10 marigolds = 10 x 2 u = 20 u

Total cost of 10 daisies and 10 marigolds
= 10 u + 20 u
= 30 u

³₁₅ of the earnings → 30 u 
¹₁₅ of the earnings → 30 u ÷ 3 = 10 u 

⁸₁₅ of the earnings → 8 x 10 u = 80 u 

Number of daisies sold that contributed to the rest of the earnings
= 80 u ÷ 1 u
= 80

⁴₁₅ of the earnings → 4 x 10 u = 40 u

Number of marigolds sold that contributed to the rest of the earnings
= 40 u ÷ 2 u
= 20

Number of flowers sold
= 10 + 10 + 80 + 20
= 120

Answer(s): 120