PSLEThe graphs show the total number of leaflets machines E and F printed from the start. Both machines started printing at the same time.
- How many more leaflets did F print than E in 3 minutes?
- Both machines did not change their rates of printing throughout. When E had printed 150 leaflets, how many leaflets had F printed?
(a)
Machine E:
6 min → 30
Machine F:
6 min → 60
Machine F more than Machine E:
6 min → 60 - 30 = 30
1 min → 30 ÷ 6 = 5
3 min → 3 x 5 = 15
Number of leaflets that Machine F printed more than Machine E in 3 min = 15
(b)
Machine E:
150 leaflets → 30 min
Machine F:
6 min → 60
1 min → 60 ÷ 6 = 10
30 min → 30 x 10 = 300
Number of leaflets that Machine F had printed when Machine E had printed 150 leaflets = 300
Answer(s): (a) 15; (b) 300