Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 700 mℓ as a percentage of 2 ℓ.
- Express 4000 mℓ as a percentage of 2 ℓ.
- Express 60 min as a percentage of 4 hours.
- Express 2 min as a percentage of 40 seconds.
(a)
1 ℓ = 1000 mℓ
2 ℓ = 2000 mℓ
7002000 x 100% = 35%
(b)
4000 mℓ = 4 ℓ
42 x 100% = 200%
(c)
1 h = 60 min
4 h = 240 min
60240 x 100% = 25%
(d)
1 min = 60 seconds
2 min = 120 seconds
12040 x 100% = 300%
Answer(s): 35%, 200%, 25%, 300%