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 2000 mℓ as a percentage of 1 ℓ.
- Express 90 min as a percentage of 5 hours.
- Express 6 min as a percentage of 40 seconds.
(a)
1 ℓ = 1000 mℓ
6 ℓ = 6000 mℓ
9006000 x 100% = 15%
(b)
2000 mℓ = 2 ℓ
21 x 100% = 200%
(c)
1 h = 60 min
5 h = 300 min
90300 x 100% = 30%
(d)
1 min = 60 seconds
6 min = 360 seconds
36040 x 100% = 900%
Answer(s): 15%, 200%, 30%, 900%