Copier C prints at a rate of 92 leaflets in every 4 minutes and Copier D prints at a rate of 120 leaflets in every 3 minutes. At 6 p.m., both copiers started printing. After a while, Copier C stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier D continued printing during this time. At 8 p.m., the total number of leaflets printed during the past two hours was 8693. Express the number of leaflets printed by Copier C as a percentage of the total number of leaflets printed by both copiers. Round off your answer to 2 decimal places.
Number of leaflets Copier C prints per min = 92 ÷ 4 = 23
Number of leaflets Copier D prints per min = 120 ÷ 3 = 40

From 6 p.m. to 8 p.m. = 2 h
1 h = 60 min
2 h = 120 min

Number of leaflets printed by Copier D in 6 h
= 120 x 40
= 4800

Number of leaflets printed by Copier C in 6 h
= 8693 - 4800
= 3893

Percentage of the number of leaflets that Copier C printed over the total number of leaflets printed
= ³⁸⁹³₈₆₉₃ x 100%
≈ 44.78%

Answer(s): 44.78%