Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 700 mℓ as a percentage of 7 ℓ.
- Express 6000 mℓ as a percentage of 5 ℓ.
- Express 60 min as a percentage of 5 hours.
- Express 8 min as a percentage of 80 seconds.
(a)
1 ℓ = 1000 mℓ
7 ℓ = 7000 mℓ
7007000 x 100% = 10%
(b)
6000 mℓ = 6 ℓ
65 x 100% = 120%
(c)
1 h = 60 min
5 h = 300 min
60300 x 100% = 20%
(d)
1 min = 60 seconds
8 min = 480 seconds
48080 x 100% = 600%
Answer(s): 10%, 120%, 20%, 600%