The average weekly number of toy cars produced by Factory L and M is 3645. The average weekly number of toy cars produced by Factory L and N is 6963. If Factory M produced ²₅ as many toy cars as Factory N each week, how many toy cars does Factory L produce weekly?
Total toy cars that Factory L and Factory M produced
= 3645 x 2
= 7290

Total toy cars that Factory L and Factory N produced
= 6963 x 2
= 13926

Number of toy cars produced by Factory M = 2 u
Number of toy cars produced by Factory N = 5 u

Factory L's toys + 2 u = 7290 --- (1)
Factory L's toys + 5 u = 13926 --- (2)

(2) - (1)
5 u - 2 u = 13926 - 7290
3 u = 6636
1 u = 6636 ÷ 3 = 2212

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

Number of toy cars produced by L
= 7290 - 4424
= 2866

Answer(s): 2866