The average weekly number of toy helicopters produced by Factory N and P is 3588. The average weekly number of toy helicopters produced by Factory N and Q is 6763. If Factory P produced ⁴₉ as many toy helicopters as Factory Q each week, how many toy helicopters does Factory N produce weekly?
Total toy helicopters that Factory N and Factory P produced
= 3588 x 2
= 7176

Total toy helicopters that Factory N and Factory Q produced
= 6763 x 2
= 13526

Number of toy helicopters produced by Factory P = 4 u
Number of toy helicopters produced by Factory Q = 9 u

Factory N's toys + 4 u = 7176 --- (1)
Factory N's toys + 9 u = 13526 --- (2)

(2) - (1)
9 u - 4 u = 13526 - 7176
5 u = 6350
1 u = 6350 ÷ 5 = 1270

Number of toy helicopters produced by P
= 4 u
= 4 x 1270
= 5080

Number of toy helicopters produced by N
= 7176 - 5080
= 2096

Answer(s): 2096