The average weekly number of toy helicopters produced by Factory V and W is 3379. The average weekly number of toy helicopters produced by Factory V and X is 6634. If Factory W produced ²₇ 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
= 3379 x 2
= 6758

Total toy helicopters that Factory V and Factory X produced
= 6634 x 2
= 13268

Number of toy helicopters produced by Factory W = 2 u
Number of toy helicopters produced by Factory X = 7 u

Factory V's toys + 2 u = 6758 --- (1)
Factory V's toys + 7 u = 13268 --- (2)

(2) - (1)
7 u - 2 u = 13268 - 6758
5 u = 6510
1 u = 6510 ÷ 5 = 1302

Number of toy helicopters produced by W
= 2 u
= 2 x 1302
= 2604

Number of toy helicopters produced by V
= 6758 - 2604
= 4154

Answer(s): 4154