Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 500 mℓ as a percentage of 2 ℓ.
- Express 1000 mℓ as a percentage of 2 ℓ.
- Express 90 min as a percentage of 6 hours.
- Express 3 min as a percentage of 20 seconds.
(a)
1 ℓ = 1000 mℓ
2 ℓ = 2000 mℓ
5002000 x 100% = 25%
(b)
1000 mℓ = 1 ℓ
12 x 100% = 50%
(c)
1 h = 60 min
6 h = 360 min
90360 x 100% = 25%
(d)
1 min = 60 seconds
3 min = 180 seconds
18020 x 100% = 900%
Answer(s): 25%, 50%, 25%, 900%