Question
Copier Z prints at a rate of 120 brochures in every 4 minutes and Copier A prints at a rate of 150 brochures in every 5 minutes. At 7 p.m., both copiers started printing. After a while, Copier Z stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier A continued printing during this time. At 10 p.m., the total number of brochures printed during the past three hours was 8354. Express the number of brochures printed by Copier Z as a percentage of the total number of brochures printed by both copiers. Round off your answer to 2 decimal places.
5 m

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Copier Z prints at a rate of 120 brochures in every 4 minutes and Copier A prints at a rate of 150 brochures in every 5 minutes. At 7 p.m., both copiers started printing. After a while, Copier Z stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier A continued printing during this time. At 10 p.m., the total number of brochures printed during the past three hours was 8354. Express the number of brochures printed by Copier Z as a percentage of the total number of brochures printed by both copiers. Round off your answer to 2 decimal places.