The graphs show the total number of leaflets machines D and E printed from the start. Both machines started printing at the same time.
- How many more leaflets did E print than D in 3 minutes?
- Both machines did not change their rates of printing throughout. When D had printed 200 leaflets, how many leaflets had E printed?
(a)
Machine D:
10 min → 80
Machine E:
10 min → 100
Machine E more than Machine D:
10 min → 100 - 80 = 20
1 min → 20 ÷ 10 = 2
3 min → 3 x 2 = 6
Number of leaflets that machine E printed more than Machine D in 3 min = 6
(b)
Machine D:
200 leaflets → 25 min
Machine E:
10 min → 100
1 min → 100 ÷ 10 = 10
25 min → 25 x 10 = 250
Number of leaflets that E had printed when D had printed 200 leaflets = 250
Answer(s): (a) 6; (b) 250