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 6 ℓ.
- Express 7000 mℓ as a percentage of 1 ℓ.
- Express 90 min as a percentage of 3 hours.
- Express 2 min as a percentage of 20 seconds.
(a)
1 ℓ = 1000 mℓ
6 ℓ = 6000 mℓ
6006000 x 100% = 10%
(b)
7000 mℓ = 7 ℓ
71 x 100% = 700%
(c)
1 h = 60 min
3 h = 180 min
90180 x 100% = 50%
(d)
1 min = 60 seconds
2 min = 120 seconds
12020 x 100% = 600%
Answer(s): 10%, 700%, 50%, 600%