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 5000 mℓ as a percentage of 5 ℓ.
- Express 90 min as a percentage of 6 hours.
- Express 7 min as a percentage of 10 seconds.
(a)
1 ℓ = 1000 mℓ
2 ℓ = 2000 mℓ
2002000 x 100% = 10%
(b)
5000 mℓ = 5 ℓ
55 x 100% = 100%
(c)
1 h = 60 min
6 h = 360 min
90360 x 100% = 25%
(d)
1 min = 60 seconds
7 min = 420 seconds
42010 x 100% = 4200%
Answer(s): 10%, 100%, 25%, 4200%