The buyer should lose money, because if one is 2 10, a box is 21; He bought 9 boxes on 195, 195/9=2 1.666. It should have been 9 boxes each with 2 1, * *189; Actually spent195; Lost 195- 189=6 yuan;
Brother soy sauce definitely made a profit. There is a loss and there is a profit. Soy sauce brother bought a box of cigarettes with 15 yuan, which was originally 2 1 yuan. Of course, 6 yuan earned it.
Question 2: The owner of the tobacco stall made a profit. He didn't lose money before, and then 10 yuan bought a box of cigarettes that was originally 2 1 yuan, and of course he made a profit. He earned 21-10 =11yuan.
Buyer, or the problem 1. It should have been 9 boxes each with 2 1, * * *189; Actually spent195; Lost 195- 189=6 yuan;
Brother soy sauce, I also lost. I'm just out of my mind I have 15 in my hand, but I still saved 10 after a long struggle. I must have lost five dollars! This is stupid.