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 5000 mℓ as a percentage of 2 ℓ.
- Express 60 min as a percentage of 4 hours.
- Express 6 min as a percentage of 90 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
8005000 x 100% = 16%
(b)
5000 mℓ = 5 ℓ
52 x 100% = 250%
(c)
1 h = 60 min
4 h = 240 min
60240 x 100% = 25%
(d)
1 min = 60 seconds
6 min = 360 seconds
36090 x 100% = 400%
Answer(s): 16%, 250%, 25%, 400%