Peter and Neave each had the same volume of water. The water was used to pour into identical bottles. Peter filled up 12 bottles and had 7.6 ℓ of water left. Neave filled up 6 bottles and had 8.8 ℓ of water left.
- What was the capacity of each bottle? Give your answer in millilitres.
- What was the total volume of water Peter and Neave had at first? Give your answer in litres.
(a)
Difference between the number of bottles
= 12 - 6
= 6
Difference between the volume of water left
= 8.8 - 7.6
= 1.2 ℓ
Volume of 6 bottles = 1.2 ℓ
Volume of 1 bottle
= 1.2 ÷ 6
= 0.2 ℓ
1 ℓ = 1000 mℓ
0.2 ℓ = 0.2 x 1000 = 200 mℓ
(b)
Volume of 6 bottles
= 6 x 0.2
= 1.2 ℓ
Volume of water that Neave had at first
= 1.2 + 8.8
= 10 ℓ
Total volume of water that Peter and Neave had at first
= 2 x 10
= 20 ℓ
Answer(s): (a) 200 mℓ (b) 20 ℓ