From problems and equations
[5×(x+ 1)-4]/8 =(7x- 1)/ 1 1
That is 55x+ 1 1=56x-8.
Solution, x = 19
Each box contains (7×19-1) ÷11=12 pieces.
Therefore, each box contains 12 products.
2. A box of moon cakes needs flour.
=0.05×2+0.02×4
= 0.18kg
One * * * can produce moon cakes: 4500 ÷ 0. 18 = 25000 boxes.
Flour required for big moon cakes = 0.05× 2× 25000 = 2500 kg.
Flour required for small moon cakes = 0.02× 4× 25000 = 2000 kg.
So the big moon cake needs 2500kg flour, and the small moon cake needs 2000kg flour.