Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 300 mℓ as a percentage of 6 ℓ.
- Express 1000 mℓ as a percentage of 2 ℓ.
- Express 60 min as a percentage of 4 hours.
- Express 3 min as a percentage of 10 seconds.
(a)
1 ℓ = 1000 mℓ
6 ℓ = 6000 mℓ
3006000 x 100% = 5%
(b)
1000 mℓ = 1 ℓ
12 x 100% = 50%
(c)
1 h = 60 min
4 h = 240 min
60240 x 100% = 25%
(d)
1 min = 60 seconds
3 min = 180 seconds
18010 x 100% = 1800%
Answer(s): 5%, 50%, 25%, 1800%