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 6000 mℓ as a percentage of 3 ℓ.
- Express 30 min as a percentage of 2 hours.
- Express 6 min as a percentage of 90 seconds.
(a)
1 ℓ = 1000 mℓ
2 ℓ = 2000 mℓ
7002000 x 100% = 35%
(b)
6000 mℓ = 6 ℓ
63 x 100% = 200%
(c)
1 h = 60 min
2 h = 120 min
30120 x 100% = 25%
(d)
1 min = 60 seconds
6 min = 360 seconds
36090 x 100% = 400%
Answer(s): 35%, 200%, 25%, 400%