A and B What is the unit price of each of the two commodities?

Solution: From the meaning of the title, the unit price of the original two commodities A and B can be set to be a yuan and b yuan respectively, then:

After the price of commodity A is reduced by 10%, its ** becomes yuan; After the price of commodity B is increased by 40%, its ** becomes yuan.

The original unit price of the two commodities is 100 yuan, and after the price adjustment, the unit price of the two commodities is increased by 20% compared with the original unit price, that is, 120 yuan.

So the list gets:

a+b=100 (1)

2) 1) Available: (3).

2)-(3) De:

The solution yields b=60 and a=40

Therefore, the original unit price of two commodities A and B was 40 yuan and 60 yuan respectively, and after the price adjustment, the unit price of two commodities A and B were 36 yuan and 84 yuan respectively.

The sum of the original unit price of the two commodities A and B is 100 yuan, due to market changes, the price of commodity A is reduced by 10%, and the price of commodity B is increased by 5%Solution: the original unit price of commodity A is x yuan, and the original unit price of commodity B is 100-x yuan (1-10%) x + (100-x) (1).

After the price adjustment, the sum of the unit prices of the two commodities is 20% higher than the original unit price, that is, the sum of the unit prices becomes: 100 + 100 * 20% = 120.

The sum of the original unit price of the two commodities is 100 yuan, that is: A + B = 100 A * + B * (multiply separately, this is done to compare with the current unit price below, of course, you can also multiply, calculate A first).

The sum of the unit prices of the two commodities A and B is now 120 yuan, that is: A * (1-10%) + B * (1 + 40%) = 120

A* + B*

Now compared with the original unit price, A is the same, it is A*, B is different, the unit price is also different, the difference is in B.

B B = 120-90 B = 30 B = 30 then A = 100-60 = 40 ...This is the original unit price.

Current unit price: A = 40-40 * 10% = 36 B = 60 + 60 * 40% = 84

Is it after the price adjustment, or before the price adjustment?

If the original prices of goods A and B are 4x yuan and 3x yuan respectively, then there are:

frac=\frac

That is, the ratio of the two commodities A and B is 4:3. At this time, after the **** of commodity A is 50 yuan, the ratio of the two commodities A and B becomes 3:2, so there are:

frac:\frac=3:2

To simplify: frac= frac= frac

Solution: x=50

Therefore, the original price of the two commodities A and B is 4x = 200 yuan and 3x = 150 yuan respectively.

If the original prices of goods A and B are 4x yuan and 3x yuan respectively, then there are:

frac=\frac

That is, the ratio of the two commodities A and B is 4:3. At this time, after the **** of commodity A is 50 yuan, the ratio of the two commodities A and B becomes 3:2, so there are:

frac:\frac=3:2

To simplify: frac= frac= frac

Solution: x=50

Therefore, the original price of the two commodities A and B is 4x = 200 yuan and 3x = 150 yuan respectively.

A costs x, B costs 300-x

A pricing: x*(1+30%)

B's pricing: (300-x)*(1+20%)

The sales price of the first hall: x * (1 + 30%) * 90% B sales price: (300-x) * (1 + 20%) * 90% profit is 42 yuan Soxun Yin, then: A sales price + B sales price - total cost = 42 yuan.

So x*(1+30%)*90%+(300-x)*(1+20%)*90%-300=42

Solution x=200

Therefore, the cost of a Shangchang god product is 200 yuan.

Summary. Let A's ** be x and B's ** be 84-x

The two commodities are sold for a total of 84 yuan, and how many yuan is each of the 1 4 A and B commodities of A**1 3 equal to B**?

Let A's ** be x and B's ** be 84-x

1/3x=1/4×(84-x)

1/3x＝21-1/4x

7/12x=21.

x=36.A is 36, B is 84-36 48

The last question troubles Mr. Xiao Ou <>

Solution: Let the ** of the two kinds of land goods of A early Nian Yu B be x and high letter y, then x y=5 3

x-y=40

The solution yields x=100 and y=60

B's ** is $150.

The ratio of the two commodities A and B is 4:3, so it is said that the ** plus side is one point more than the ** of B commodity, that is, one is 50 yuan. So, B is 3 50 = 150.

Suppose B is $ x and A is $4 3 $, so 4 3x x = 50 x = $150.

Solution: Let B's ** be a yuan, then A's ** is a + 50 yuan according to the meaning of the problem can be listed as an equation:

a+50/a＝4/3

3（a+50）＝4a

A 150 A: B's ** is 150 yuan.

solution, let B **x yuan, A is 4x 3 yuan.

then, 4x 3-x = 50

x=50÷(4/3-1)

x=150

Let commodity B ** be x, then commodity A ** is 50+x, and the equation can be listed, and the final result is x=150. Therefore, B's ** is 150 yuan.

50*3=150 yuan.

Analysis, the difference between the numbers is the difference in the price of the commodity.

If the original unit price of commodity A is x yuan, then the original unit price of commodity B is 100-x yuan, then there are:

x*(1-10%)+100-x)*(1+40%)=100*(1+20%)

x=40100-x=60

Therefore, the original unit price of a product was 40 yuan, and the original price of a single stool sedan banquet was 60 yuan for a single stool sedan banquet.