The graphs show the total number of leaflets machines G and H printed from the start. Both machines started printing at the same time.
- How many more leaflets did H print than G in 8 minutes?
- Both machines did not change their rates of printing throughout. When G had printed 250 leaflets, how many leaflets had H printed?
(a)
Machine G:
10 min → 100
Machine H:
10 min → 150
Machine H more than Machine G:
10 min → 150 - 100 = 50
1 min → 50 ÷ 10 = 5
8 min → 8 x 5 = 40
Number of leaflets that machine H printed more than Machine G in 8 min = 40
(b)
Machine G:
250 leaflets → 25 min
Machine H:
10 min → 150
1 min → 150 ÷ 10 = 15
25 min → 25 x 15 = 375
Number of leaflets that H had printed when G had printed 250 leaflets = 375
Answer(s): (a) 40; (b) 375