The monkey mother picked 17 peaches for her children to eat. The big monkey said it would get 3% of the total, the second monkey would get 2% of the total, and the little monkey would get 3% The mother monkey asked the three monkeys not to cut the peaches apart. Do you have any good idea?

Suppose the little monkey wants to share x peaches
0.5+1/3+x =1
5/6+x =1
x =1/6
17 + 1 = 18
18*1/6-1/6=17/6

Mother monkey picked some peaches and divided them into three, five or seven on average, leaving one peach. How many peaches are there at least?

Finding the least common multiple of 3, 5 and 7
The least common multiple is 105
Then add one to make 106

The mother monkey picked back some peaches. The little monkeys ate half of these peaches on the first day and the remaining one-third on the second day. There were still 20 peaches left. How many peaches did they pick
There should be relations

20÷[1-1/2-（1-1/2×1/3）]
＝20÷（1/2-1/6）
＝20÷1/3
= 60

Mother monkey picked back some peaches. The little monkey ate half of the peaches on the first day, and then ate the rest the next day. At this time, there was only one peach left

This kind of question. Has the inverse method to be quite easy
The last one is left. The penultimate day is two
So the first day is twice as much as the penultimate day. That's four
That's it. No matter how many days. It's easy to use this method

The original price of a TV set in Gome electric mall was 2100 yuan, and the price was reduced by 1 / 20 on May Day. The National Day Golden Week promotion was held again on May Day
How much is the current price per unit? (to do the process,)

2100 × (1-1 / 20) × (1-1 / 15) = 1862 yuan
I hope I can help you. I wish you progress in your study. If you don't understand, please ask me. If you understand, please adopt it in time! (*^__ ^*)

A shopping mall plans to sell 900 computers a month. During the golden week from October 1 to 7, the shopping mall decides to carry out promotional activities, and the sales plan in October increases by 30%. It is known that the average number of computers sold in the golden week is 54. How many computers can the shopping mall sell in the next 24 days of this month?

Set an average of X units per day,
54 × 7 + 24x ≥ 900 + 900 × 30%,
The solution is x = 33
The mall will sell at least 33 units per day in the next 24 days of this month

After a shopping mall bought two kinds of clothing, the price of a and B increased by 40% and 40% respectively. During the Spring Festival, the shopping mall decided to sell the two kinds of clothing at 20% and 25% discount respectively. After buying the goods, the supermarket made a profit of 88 yuan. What's the price of a and B
50% increase of commodity a

After a shopping mall bought two kinds of clothes, the price of goods a and B increased [50%], while the price of goods B increased by 40%. During the Spring Festival, the shopping mall decided to sell two kinds of clothes a and B at 20% and 25% discount respectively. After buying goods a and B, the total payment was 538, and the supermarket made a profit of 88 yuan?
A actual price increase (1 + 50%) x 0.8-1 = 20%
Actual price increase of Party B (1 + 40%) x 0.85-1 = 19%
The total purchase price of Party A and Party B is 538-88 = 450 yuan
The purchase price of B is (450x20% - 88) / (20% - 19%) = 200 yuan
The purchase price of a is 450-200 = 250 yuan
A: the price of a is 250 yuan, and that of B is 200 yuan

After a shopping mall bought two kinds of clothing, they all increased the price by 40%. During the Spring Festival, the shopping mall made a preferential promotion and decided to sell them at 20% and 10% discount of the price. A customer paid 182 yuan for the two kinds of clothing, and the sum of the two kinds of clothing price was 210 yuan?

If the price of a kind of clothing is x yuan, then the price is x1.4 yuan according to the title; if the price of B kind of clothing is y yuan, then the price is y1.4 yuan according to the title, then according to the title equation system, we get x + y = 21080% x + 90% y = 182, and the solution is x = 70Y = 140

After a shopping mall bought two kinds of clothing, they all increased the price by 40%. During the Spring Festival, the shopping mall made a preferential promotion and decided to sell them at 20% and 10% discount of the price. A customer paid 182 yuan for the two kinds of clothing, and the sum of the two kinds of clothing price was 210 yuan?

After a shopping mall bought two kinds of clothes, both of them were sold at a price of 40 yuan. During the Spring Festival, the shopping mall made a preferential promotion and decided to sell them together
The payment is 182 yuan, and the sum of the price of the two kinds of clothing is 210 yuan. How much is the price of the two kinds of clothing

If the price of a is RMB x, the price of B is RMB (182-x),
8 x + 0.9 (210-x) = 182, x = 70
The price of B is 112 yuan, the price of a is 70 / (1 + 40%) = 50, the price of B is 112 / (1 + 40%) = 80

The monkey mother picked 17 peaches for her children to eat. The big monkey said it would get 3% of the total, the second monkey would get 2% of the total, and the little monkey would get 3% The mother monkey asked the three monkeys not to cut the peaches apart. Do you have any good idea?