Jane purchased a bottle of syrup. She used ⁵₇ of the syrup in April. She then used the remaining syrup in May and June in the ratio 2 : 3. Given that the amount of the syrup used in June was 0.76 ℓ less than that in April, how many millilitres of syrup did the bottle contain at first?

April	May	June	Total
5x5	2x5		7x5
	2x2	3x2
25 u	4 u	6 u	35 u

Total volume of May and June is combined repeated identity. Make the total volume of May and June the same. LCM of 2 and 5 is 10.

Volume of less syrup syrup in the bottle used in June than April
= 25 u - 6 u
= 19 u

19 u = 0.76 

1 u = 0.76 ÷ 19 = 0.04

Amount of syrup in the bottle at first
= 35 u
= 35 x 0.04
= 1.4 ℓ

1 ℓ = 1000 mℓ

Amount of syrup in the bottle at first
= 1.4 x 1000
= 1400 mℓ

Answer(s): 1400 mℓ