Copier A prints at a rate of 108 leaflets in every 3 minutes and Copier B prints at a rate of 132 leaflets in every 6 minutes. At 3 p.m., both copiers started printing. After a while, Copier A stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier B continued printing during this time. At 5 p.m., the total number of leaflets printed during the past two hours was 6623. Express the number of leaflets printed by Copier A 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 A prints per min = 108 ÷ 3 = 36
Number of leaflets Copier B prints per min = 132 ÷ 6 = 22

From 3 p.m. to 5 p.m. = 2 h
1 h = 60 min
2 h = 120 min

Number of leaflets printed by Copier B in 3 h
= 120 x 22
= 2640

Number of leaflets printed by Copier A in 3 h
= 6623 - 2640
= 3983

Percentage of the number of leaflets that Copier A printed over the total number of leaflets printed
= ³⁹⁸³₆₆₂₃ x 100%
≈ 60.14%

Answer(s): 60.14%