Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 600 mℓ as a percentage of 2 ℓ.
- Express 3000 mℓ as a percentage of 4 ℓ.
- Express 30 min as a percentage of 5 hours.
- Express 8 min as a percentage of 60 seconds.
(a)
1 ℓ = 1000 mℓ
2 ℓ = 2000 mℓ
6002000 x 100% = 30%
(b)
3000 mℓ = 3 ℓ
34 x 100% = 75%
(c)
1 h = 60 min
5 h = 300 min
30300 x 100% = 10%
(d)
1 min = 60 seconds
8 min = 480 seconds
48060 x 100% = 800%
Answer(s): 30%, 75%, 10%, 800%