Traditional Culture Encyclopedia - Travel guide - A travel goods dealership wants to buy two kinds of souvenirs, A and B. If you use 380 yuan, you can buy seven kinds of souvenirs and eight kinds of souvenirs. 380 yuan can also buy it.
A travel goods dealership wants to buy two kinds of souvenirs, A and B. If you use 380 yuan, you can buy seven kinds of souvenirs and eight kinds of souvenirs. 380 yuan can also buy it.
Solution: (1) Let the purchase price of A be X yuan/piece and the purchase price of B be Y yuan/piece.
? ∴
A: The purchase price of A is 20 yuan/piece, and the purchase price of B is 30 yuan/piece;
(2) Buy 40-a pieces of product A?
∴
∫a is a positive integer ∴ A = 30,3132.
Suppose the total profit is w yuan.
∵-2 & lt； 0 ∴w decreases with the increase of A.
When a=30? Yuan dynasty (1206- 1368)
The purchase plan at this time: 30 products A and 10 products B.
Answer: 30 pieces of A products and 10 pieces of B products were imported, and 220 yuan gained the most.
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