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 9 ℓ.
- Express 2000 mℓ as a percentage of 2 ℓ.
- Express 60 min as a percentage of 5 hours.
- Express 6 min as a percentage of 90 seconds.
(a)
1 ℓ = 1000 mℓ
9 ℓ = 9000 mℓ
9009000 x 100% = 10%
(b)
2000 mℓ = 2 ℓ
22 x 100% = 100%
(c)
1 h = 60 min
5 h = 300 min
60300 x 100% = 20%
(d)
1 min = 60 seconds
6 min = 360 seconds
36090 x 100% = 400%
Answer(s): 10%, 100%, 20%, 400%