Copier F prints at a rate of 90 brochures in every 3 minutes and Copier G prints at a rate of 150 brochures in every 6 minutes. At 5 p.m., both copiers started printing. After a while, Copier F stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier G continued printing during this time. At 7 p.m., the total number of brochures printed during the past two hours was 5735. Express the number of brochures printed by Copier F 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 F prints per min = 90 ÷ 3 = 30
Number of brochures Copier G prints per min = 150 ÷ 6 = 25

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

Number of brochures printed by Copier G in 5 h
= 120 x 25
= 3000

Number of brochures printed by Copier F in 5 h
= 5735 - 3000
= 2735

Percentage of the number of brochures that Copier F printed over the total number of brochures printed
= ²⁷³⁵₅₇₃₅ x 100%
≈ 47.69%

Answer(s): 47.69%