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 7 ℓ.
- Express 3000 mℓ as a percentage of 2 ℓ.
- Express 90 min as a percentage of 6 hours.
- Express 6 min as a percentage of 90 seconds.
(a)
1 ℓ = 1000 mℓ
7 ℓ = 7000 mℓ
7007000 x 100% = 10%
(b)
3000 mℓ = 3 ℓ
32 x 100% = 150%
(c)
1 h = 60 min
6 h = 360 min
90360 x 100% = 25%
(d)
1 min = 60 seconds
6 min = 360 seconds
36090 x 100% = 400%
Answer(s): 10%, 150%, 25%, 400%