A stall was selling flowers. ¹₅ of the earnings are from the sale of 10 marigolds and 10 tulips. Of the rest of the earnings, ³₅ are from the sale of marigolds and ²₅ are from the sale of tulips. Each tulip costs twice as much as each marigold. How many flowers were sold?

10 marigolds and 10 tulips	Rest of the earnings		Total earnings
1x5	4x5
	Roses	Carnations
	3x4	2x4
5	12	8	25

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

The rest of the earnings is repeated. LCM of 4 and 5 is 20.

Cost of 1 marigold = 1 u
Cost of 1 tulip = 2 u

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

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

⁵₂₅ of the earnings → 30 u 
¹₂₅ of the earnings → 30 u ÷ 5 = 6 u 

¹²₂₅ of the earnings → 12 x 6 u = 72 u 

Number of marigolds sold that contributed to the rest of the earnings
= 72 u ÷ 1 u
= 72

⁸₂₅ of the earnings → 8 x 6 u = 48 u

Number of tulips sold that contributed to the rest of the earnings
= 48 u ÷ 2 u
= 24

Number of flowers sold
= 10 + 10 + 72 + 24
= 116

Answer(s): 116