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 5 ℓ.
- Express 1000 mℓ as a percentage of 4 ℓ.
- Express 60 min as a percentage of 4 hours.
- Express 5 min as a percentage of 50 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
9005000 x 100% = 18%
(b)
1000 mℓ = 1 ℓ
14 x 100% = 25%
(c)
1 h = 60 min
4 h = 240 min
60240 x 100% = 25%
(d)
1 min = 60 seconds
5 min = 300 seconds
30050 x 100% = 600%
Answer(s): 18%, 25%, 25%, 600%