Dana had some orange juice. Each day, she drank an equal amount of orange juice. At the end of the eighth day, she had 1600 mℓ of orange juice left. At the end of the ninth day, she had 1100 mℓ of orange juice left.
- What was the amount of orange juice she drank each day?
- How much orange juice did Dana have at first? Give your answer in litres and millilitres.
(a)
Volume of orange juice that Dana drank each day
= 1600 - 1100
= 500 mℓ
(b)
Volume of orange juice that Dana had at first
= 1600 + 500 x 8
= 1600 + 4000
= 5600 mℓ
1000 mℓ = 1 ℓ
5600 mℓ = 5 ℓ 600 mℓ
Volume of orange juice that Dana had at first = 5 ℓ 600 mℓ
Answer(s): (a) 500 mℓ; (b) 5 ℓ 600 mℓ