Zara purchased a bottle of passion fruit syrup to make drinks. She used ³₅ of the syrup in March. She then used the remaining syrup in April and May in the ratio 2 : 3. Given that the amount of the passion fruit syrup used in March was 1.32 ℓ more than that in April, how many millilitres of passion fruit syrup did the bottle contain at first?

March	April	May	Total
3x5	2x5		5x5
	2x2	3x2
15 u	4 u	6 u	25 u

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

Volume of more passion fruit syrup in the bottle used in March than April
= 15 u - 4 u
= 11 u

11 u = 1.32 

1 u = 1.32 ÷ 11 = 0.12

Amount of passion fruit syrup in the bottle at first
= 25 u
= 25 x 0.12
= 3 ℓ

1 ℓ = 1000 mℓ

Amount of passion fruit syrup in the bottle at first
= 3 x 1000
= 3000 mℓ

Answer(s): 3000 mℓ