Copier S prints at a rate of 94 brochures in every 2 minutes and Copier T prints at a rate of 135 brochures in every 3 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 brochures printed during the past two hours was 8403. Express the number of brochures printed by Copier S as a percentage of the total number of brochures printed by both copiers. Round off your answer to 2 decimal places.
Number of brochures Copier S prints per min = 94 ÷ 2 = 47
Number of brochures Copier T prints per min = 135 ÷ 3 = 45

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

Number of brochures printed by Copier T in 5 h
= 120 x 45
= 5400

Number of brochures printed by Copier S in 5 h
= 8403 - 5400
= 3003

Percentage of the number of brochures that Copier S printed over the total number of brochures printed
= ³⁰⁰³₈₄₀₃ x 100%
≈ 35.74%

Answer(s): 35.74%