Xylia purchased a bottle of vinegar. She used ⁴₇ of the vinegar in April. She then used the remaining vinegar in May and June in the ratio 1 : 7. Given that the amount of the vinegar used in June was 0.44 ℓ less than that in April, how many millilitres of vinegar did the bottle contain at first?

April	May	June	Total
4x8	3x8		7x8
	1x3	7x3
32 u	3 u	21 u	56 u

Total volume of May and June is combined repeated identity. Make the total volume of May and June the same. LCM of 3 and 8 is 24.

Volume of less vinegar syrup in the bottle used in June than April
= 32 u - 21 u
= 11 u

11 u = 0.44 

1 u = 0.44 ÷ 11 = 0.04

Amount of vinegar in the bottle at first
= 56 u
= 56 x 0.04
= 2.24 ℓ

1 ℓ = 1000 mℓ

Amount of vinegar in the bottle at first
= 2.24 x 1000
= 2240 mℓ

Answer(s): 2240 mℓ