Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 800 mℓ as a percentage of 5 ℓ.
- Express 3000 mℓ as a percentage of 4 ℓ.
- Express 60 min as a percentage of 2 hours.
- Express 6 min as a percentage of 90 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
8005000 x 100% = 16%
(b)
3000 mℓ = 3 ℓ
34 x 100% = 75%
(c)
1 h = 60 min
2 h = 120 min
60120 x 100% = 50%
(d)
1 min = 60 seconds
6 min = 360 seconds
36090 x 100% = 400%
Answer(s): 16%, 75%, 50%, 400%