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 5 ℓ.
- Express 2000 mℓ as a percentage of 5 ℓ.
- Express 60 min as a percentage of 5 hours.
- Express 3 min as a percentage of 50 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
3005000 x 100% = 6%
(b)
2000 mℓ = 2 ℓ
25 x 100% = 40%
(c)
1 h = 60 min
5 h = 300 min
60300 x 100% = 20%
(d)
1 min = 60 seconds
3 min = 180 seconds
18050 x 100% = 360%
Answer(s): 6%, 40%, 20%, 360%