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 6 ℓ.
- Express 90 min as a percentage of 6 hours.
- Express 6 min as a percentage of 40 seconds.
(a)
1 ℓ = 1000 mℓ
7 ℓ = 7000 mℓ
7007000 x 100% = 10%
(b)
6000 mℓ = 6 ℓ
66 x 100% = 100%
(c)
1 h = 60 min
6 h = 360 min
90360 x 100% = 25%
(d)
1 min = 60 seconds
6 min = 360 seconds
36040 x 100% = 900%
Answer(s): 10%, 100%, 25%, 900%