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 1000 mℓ as a percentage of 4 ℓ.
- Express 60 min as a percentage of 5 hours.
- Express 2 min as a percentage of 30 seconds.
(a)
1 ℓ = 1000 mℓ
4 ℓ = 4000 mℓ
8004000 x 100% = 20%
(b)
1000 mℓ = 1 ℓ
14 x 100% = 25%
(c)
1 h = 60 min
5 h = 300 min
60300 x 100% = 20%
(d)
1 min = 60 seconds
2 min = 120 seconds
12030 x 100% = 400%
Answer(s): 20%, 25%, 20%, 400%