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 3000 mℓ as a percentage of 3 ℓ.
- Express 90 min as a percentage of 3 hours.
- Express 9 min as a percentage of 60 seconds.
(a)
1 ℓ = 1000 mℓ
6 ℓ = 6000 mℓ
9006000 x 100% = 15%
(b)
3000 mℓ = 3 ℓ
33 x 100% = 100%
(c)
1 h = 60 min
3 h = 180 min
90180 x 100% = 50%
(d)
1 min = 60 seconds
9 min = 540 seconds
54060 x 100% = 900%
Answer(s): 15%, 100%, 50%, 900%