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 2 ℓ.
- Express 60 min as a percentage of 4 hours.
- Express 8 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
72 x 100% = 350%
(c)
1 h = 60 min
4 h = 240 min
60240 x 100% = 25%
(d)
1 min = 60 seconds
8 min = 480 seconds
48020 x 100% = 2400%
Answer(s): 10%, 350%, 25%, 2400%