Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 900 mℓ as a percentage of 6 ℓ.
- Express 5000 mℓ as a percentage of 2 ℓ.
- Express 60 min as a percentage of 5 hours.
- Express 6 min as a percentage of 30 seconds.
(a)
1 ℓ = 1000 mℓ
6 ℓ = 6000 mℓ
9006000 x 100% = 15%
(b)
5000 mℓ = 5 ℓ
52 x 100% = 250%
(c)
1 h = 60 min
5 h = 300 min
60300 x 100% = 20%
(d)
1 min = 60 seconds
6 min = 360 seconds
36030 x 100% = 1200%
Answer(s): 15%, 250%, 20%, 1200%