Copier S prints at a rate of 116 flyers in every 4 minutes and Copier T prints at a rate of 156 flyers in every 6 minutes. At 5 p.m., both copiers started printing. After a while, Copier S stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier T continued printing during this time. At 7 p.m., the total number of flyers printed during the past two hours was 8053. Express the number of flyers printed by Copier S 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 S prints per min = 116 ÷ 4 = 29
Number of flyers Copier T prints per min = 156 ÷ 6 = 26

From 5 p.m. to 7 p.m. = 2 h
1 h = 60 min
2 h = 120 min

Number of flyers printed by Copier T in 5 h
= 120 x 26
= 3120

Number of flyers printed by Copier S in 5 h
= 8053 - 3120
= 4933

Percentage of the number of flyers that Copier S printed over the total number of flyers printed
= ⁴⁹³³₈₀₅₃ x 100%
≈ 61.26%

Answer(s): 61.26%