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 5 ℓ.
- Express 6000 mℓ as a percentage of 1 ℓ.
- Express 90 min as a percentage of 5 hours.
- Express 2 min as a percentage of 40 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
8005000 x 100% = 16%
(b)
6000 mℓ = 6 ℓ
61 x 100% = 600%
(c)
1 h = 60 min
5 h = 300 min
90300 x 100% = 30%
(d)
1 min = 60 seconds
2 min = 120 seconds
12040 x 100% = 300%
Answer(s): 16%, 600%, 30%, 300%