This number is 90.
2. Solution: X gel pens and 5x pencils (330-x-5x) are provided.
1.5x+0.54×5x+4.8(330-x-5x)= 344
X= 1240/24.6 (non-integer)
Other required matters.
3. Solution: For every X adults, there are (50-x) villains.
2x+ 1/2(50-x)=28
x=2 50-x=48
Answer: If there are two adults, it is 48 villains.
Solution: This product is priced at X yuan each.
8×0.85 x =(x-35)× 12-(x-45)×4
x=200
A: Each price of this commodity is 200 yuan.