Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 600 mℓ as a percentage of 5 ℓ.
- Express 8000 mℓ as a percentage of 1 ℓ.
- Express 90 min as a percentage of 5 hours.
- Express 8 min as a percentage of 20 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
6005000 x 100% = 12%
(b)
8000 mℓ = 8 ℓ
81 x 100% = 800%
(c)
1 h = 60 min
5 h = 300 min
90300 x 100% = 30%
(d)
1 min = 60 seconds
8 min = 480 seconds
48020 x 100% = 2400%
Answer(s): 12%, 800%, 30%, 2400%