Current location - Training Enrollment Network - Mathematics courses - You get extra points for answering two math problems correctly. The mascot of the 8th China (Chongqing) International Garden Expo "Shanwa" is deeply loved by the public. franchised dealer
You get extra points for answering two math problems correctly. The mascot of the 8th China (Chongqing) International Garden Expo "Shanwa" is deeply loved by the public. franchised dealer
First question

Suppose the unit price of A is A, the unit price of B is B, and the sales quantity of A is C. According to the meaning of the question:

Ac *10%+BC * (1+40%) * 30% = (AC+1.4bc) * 20% solvable: a =1.4b.

So the total profit rate when the quantity is equal = AC *10%+BC * 30%/AC+BC =18.33%.

the second question