Copier Y prints at a rate of 108 flyers in every 4 minutes and Copier Z prints at a rate of 160 flyers in every 5 minutes. At 1 p.m., both copiers started printing. After a while, Copier Y stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier Z continued printing during this time. At 3 p.m., the total number of flyers printed during the past two hours was 7459. Express the number of flyers printed by Copier Y as a percentage of the total number of flyers printed by both copiers. Round off your answer to 2 decimal places.
Number of flyers Copier Y prints per min = 108 ÷ 4 = 27
Number of flyers Copier Z prints per min = 160 ÷ 5 = 32

From 1 p.m. to 3 p.m. = 2 h
1 h = 60 min
2 h = 120 min

Number of flyers printed by Copier Z in 1 h
= 120 x 32
= 3840

Number of flyers printed by Copier Y in 1 h
= 7459 - 3840
= 3619

Percentage of the number of flyers that Copier Y printed over the total number of flyers printed
= ³⁶¹⁹₇₄₅₉ x 100%
≈ 48.52%

Answer(s): 48.52%