Copier G prints at a rate of 93 letters in every 3 minutes and Copier H prints at a rate of 120 letters in every 5 minutes. At 2 p.m., both copiers started printing. After a while, Copier G stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier H continued printing during this time. At 6 p.m., the total number of letters printed during the past four hours was 8502. Express the number of letters printed by Copier G as a percentage of the total number of letters printed by both copiers. Round off your answer to 2 decimal places.
Number of letters Copier G prints per min = 93 ÷ 3 = 31
Number of letters Copier H prints per min = 120 ÷ 5 = 24

From 2 p.m. to 6 p.m. = 4 h
1 h = 60 min
4 h = 240 min

Number of letters printed by Copier H in 2 h
= 240 x 24
= 5760

Number of letters printed by Copier G in 2 h
= 8502 - 5760
= 2742

Percentage of the number of letters that Copier G printed over the total number of letters printed
= ²⁷⁴²₈₅₀₂ x 100%
≈ 32.25%

Answer(s): 32.25%