Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 500 mℓ as a percentage of 5 ℓ.
- Express 4000 mℓ as a percentage of 4 ℓ.
- Express 30 min as a percentage of 5 hours.
- Express 9 min as a percentage of 80 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
5005000 x 100% = 10%
(b)
4000 mℓ = 4 ℓ
44 x 100% = 100%
(c)
1 h = 60 min
5 h = 300 min
30300 x 100% = 10%
(d)
1 min = 60 seconds
9 min = 540 seconds
54080 x 100% = 675%
Answer(s): 10%, 100%, 10%, 675%