Xandra had some milk. Each day, she drank an equal amount of milk. At the end of the eighth day, she had 1500 mℓ of milk left. At the end of the ninth day, she had 1400 mℓ of milk left.
- What was the amount of milk she drank each day?
- How much milk did Xandra have at first? Give your answer in litres and millilitres.
(a)
Volume of milk that Xandra drank each day
= 1500 - 1400
= 100 mℓ
(b)
Volume of milk that Xandra had at first
= 1500 + 100 x 8
= 1500 + 800
= 2300 mℓ
1000 mℓ = 1 ℓ
2300 mℓ = 2 ℓ 300 mℓ
Volume of milk that Xandra had at first = 2 ℓ 300 mℓ
Answer(s): (a) 100 mℓ; (b) 2 ℓ 300 mℓ