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 3 ℓ.
- Express 3000 mℓ as a percentage of 6 ℓ.
- Express 30 min as a percentage of 5 hours.
- Express 6 min as a percentage of 80 seconds.
(a)
1 ℓ = 1000 mℓ
3 ℓ = 3000 mℓ
3003000 x 100% = 10%
(b)
3000 mℓ = 3 ℓ
36 x 100% = 50%
(c)
1 h = 60 min
5 h = 300 min
30300 x 100% = 10%
(d)
1 min = 60 seconds
6 min = 360 seconds
36080 x 100% = 450%
Answer(s): 10%, 50%, 10%, 450%