PSLEThe graphs show the total number of leaflets machines F and G printed from the start. Both machines started printing at the same time.
- How many more leaflets did G print than F in 2 minutes?
- Both machines did not change their rates of printing throughout. When F had printed 200 leaflets, how many leaflets had G printed?
(a)
Machine F:
10 min → 80
Machine G:
10 min → 150
Machine G more than Machine F:
10 min → 150 - 80 = 70
1 min → 70 ÷ 10 = 7
2 min → 2 x 7 = 14
Number of leaflets that Machine G printed more than Machine F in 2 min = 14
(b)
Machine F:
200 leaflets → 25 min
Machine G:
10 min → 150
1 min → 150 ÷ 10 = 15
25 min → 25 x 15 = 375
Number of leaflets that Machine G had printed when Machine F had printed 200 leaflets = 375
Answer(s): (a) 14; (b) 375