The average weekly number of toy cars produced by Factory G and H is 3869. The average weekly number of toy cars produced by Factory G and J is 7187. If Factory H produced ²₅ as many toy cars as Factory J each week, how many toy cars does Factory G produce weekly?
Total toy cars that Factory G and Factory H produced
= 3869 x 2
= 7738

Total toy cars that Factory G and Factory J produced
= 7187 x 2
= 14374

Number of toy cars produced by Factory H = 2 u
Number of toy cars produced by Factory J = 5 u

Factory G's toys + 2 u = 7738 --- (1)
Factory G's toys + 5 u = 14374 --- (2)

(2) - (1)
5 u - 2 u = 14374 - 7738
3 u = 6636
1 u = 6636 ÷ 3 = 2212

Number of toy cars produced by H
= 2 u
= 2 x 2212
= 4424

Number of toy cars produced by G
= 7738 - 4424
= 3314

Answer(s): 3314