Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 800 mℓ as a percentage of 4 ℓ.
- Express 2000 mℓ as a percentage of 2 ℓ.
- Express 90 min as a percentage of 6 hours.
- Express 6 min as a percentage of 80 seconds.
(a)
1 ℓ = 1000 mℓ
4 ℓ = 4000 mℓ
8004000 x 100% = 20%
(b)
2000 mℓ = 2 ℓ
22 x 100% = 100%
(c)
1 h = 60 min
6 h = 360 min
90360 x 100% = 25%
(d)
1 min = 60 seconds
6 min = 360 seconds
36080 x 100% = 450%
Answer(s): 20%, 100%, 25%, 450%