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 3 ℓ.
- Express 7000 mℓ as a percentage of 1 ℓ.
- Express 60 min as a percentage of 5 hours.
- Express 3 min as a percentage of 50 seconds.
(a)
1 ℓ = 1000 mℓ
3 ℓ = 3000 mℓ
6003000 x 100% = 20%
(b)
7000 mℓ = 7 ℓ
71 x 100% = 700%
(c)
1 h = 60 min
5 h = 300 min
60300 x 100% = 20%
(d)
1 min = 60 seconds
3 min = 180 seconds
18050 x 100% = 360%
Answer(s): 20%, 700%, 20%, 360%