Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 600 mℓ as a percentage of 4 ℓ.
- Express 4000 mℓ as a percentage of 4 ℓ.
- Express 60 min as a percentage of 4 hours.
- Express 2 min as a percentage of 30 seconds.
(a)
1 ℓ = 1000 mℓ
4 ℓ = 4000 mℓ
6004000 x 100% = 15%
(b)
4000 mℓ = 4 ℓ
44 x 100% = 100%
(c)
1 h = 60 min
4 h = 240 min
60240 x 100% = 25%
(d)
1 min = 60 seconds
2 min = 120 seconds
12030 x 100% = 400%
Answer(s): 15%, 100%, 25%, 400%