Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 200 mℓ as a percentage of 2 ℓ.
- Express 6000 mℓ as a percentage of 5 ℓ.
- Express 90 min as a percentage of 2 hours.
- Express 3 min as a percentage of 60 seconds.
(a)
1 ℓ = 1000 mℓ
2 ℓ = 2000 mℓ
2002000 x 100% = 10%
(b)
6000 mℓ = 6 ℓ
65 x 100% = 120%
(c)
1 h = 60 min
2 h = 120 min
90120 x 100% = 75%
(d)
1 min = 60 seconds
3 min = 180 seconds
18060 x 100% = 300%
Answer(s): 10%, 120%, 75%, 300%