The graphs show the total number of leaflets machines T and U printed from the start. Both machines started printing at the same time.
- How many more leaflets did U print than T in 2 minutes?
- Both machines did not change their rates of printing throughout. When T had printed 200 leaflets, how many leaflets had U printed?
(a)
Machine T:
10 min → 80
Machine U:
10 min → 100
Machine U more than Machine T:
10 min → 100 - 80 = 20
1 min → 20 ÷ 10 = 2
2 min → 2 x 2 = 4
Number of leaflets that machine U printed more than Machine T in 2 min = 4
(b)
Machine T:
200 leaflets → 25 min
Machine U:
10 min → 100
1 min → 100 ÷ 10 = 10
25 min → 25 x 10 = 250
Number of leaflets that U had printed when T had printed 200 leaflets = 250
Answer(s): (a) 4; (b) 250