(have a specific formula) 1. It takes six minutes for Party A, five minutes for Party B and four minutes for Party C to manufacture a part. Now 296 parts are allocated to these three people. If they are to complete the task at the same time, how should they allocate the task? 2. A, B and C each have a certain amount of money. The money ratio of a and B is 5:6. The money of C is two-thirds of that of B. the average of the three people is 50 yuan. How much money do they each have? 3. There are two kinds of candy, a and B, whose unit price (yuan / kg) ratio is 5:4. According to the weight ratio of a and B is 2:3, the two kinds of candy are mixed together, and the unit price is 11 yuan / kg, which is just equal to the original money from separate sales. Then what are the unit prices of the two kinds of candy? 3. Draw a circle with a radius of 3cm on a 1:3000000 map. What is the actual land area of this circle? (PAI = 3.14)

(have a specific formula) 1. It takes six minutes for Party A, five minutes for Party B and four minutes for Party C to manufacture a part. Now 296 parts are allocated to these three people. If they are to complete the task at the same time, how should they allocate the task? 2. A, B and C each have a certain amount of money. The money ratio of a and B is 5:6. The money of C is two-thirds of that of B. the average of the three people is 50 yuan. How much money do they each have? 3. There are two kinds of candy, a and B, whose unit price (yuan / kg) ratio is 5:4. According to the weight ratio of a and B is 2:3, the two kinds of candy are mixed together, and the unit price is 11 yuan / kg, which is just equal to the original money from separate sales. Then what are the unit prices of the two kinds of candy? 3. Draw a circle with a radius of 3cm on a 1:3000000 map. What is the actual land area of this circle? (PAI = 3.14)

If the completion time is set to x, then when it is completed, a makes X / 6 parts, B makes X / 5 parts, C makes X / 4 parts, a total of X / 6 + X / 5 + X / 4 parts
Then x / 6 + X / 5 + X / 4 = 296
The solution is X

The current price of a skirt is 237 yuan. All our summer clothes are sold at 3 / 5 of the original price. How much cheaper is this skirt than the original price?

This skirt is cheaper than the original price = 237 △ 3 / 5 × (1-3 / 5) = 158 yuan

A loading and unloading team, 55 people in the morning, 120 tons in total, 14 people in the afternoon, 36 tons per person on average, how many tons per person in the whole day?

(14 × 36 + 120) / (55 + 14) = 624 ／ 69, ≈ 9.04 (tons); answer: the average person unloading 9.04 tons a day