The average weekly number of toy helicopters produced by Factory V and W is 3504. The average weekly number of toy helicopters produced by Factory V and X is 6858. If Factory W produced ²₅ as many toy helicopters as Factory X each week, how many toy helicopters does Factory V produce weekly?
Total toy helicopters that Factory V and Factory W produced
= 3504 x 2
= 7008

Total toy helicopters that Factory V and Factory X produced
= 6858 x 2
= 13716

Number of toy helicopters produced by Factory W = 2 u
Number of toy helicopters produced by Factory X = 5 u

Factory V's toys + 2 u = 7008 --- (1)
Factory V's toys + 5 u = 13716 --- (2)

(2) - (1)
5 u - 2 u = 13716 - 7008
3 u = 6708
1 u = 6708 ÷ 3 = 2236

Number of toy helicopters produced by W
= 2 u
= 2 x 2236
= 4472

Number of toy helicopters produced by V
= 7008 - 4472
= 2536

Answer(s): 2536