China Naming Network - Eight-character Q&A - With the coming of summer, the weather is getting hotter and hotter. A store raised the price of a carbonated drink by 10% and lowered the price of a fruit juice drink.
With the coming of summer, the weather is getting hotter and hotter. A store raised the price of a carbonated drink by 10% and lowered the price of a fruit juice drink.
Send a fee? It should be "cost"
Solution: Assuming that before the price adjustment, carbonated drinks cost X yuan per bottle, then juice drinks cost 7-x yuan per bottle.
According to the meaning of the question:
3( 1+ 10%)x+2( 1-5%)(7-x)= 17.5
3.3x+ 13.3- 1.9x = 17.5
1.4x=4.2
x=3
7-x=7-3=4 (yuan)
A: Before the price adjustment, every bottle of carbonated drinks is 3 yuan, and every bottle of fruit juice drinks is 4 yuan.