Puzzle! Come and help! The answer is good, there is an addition! Don t forget that it s the process

When each box weighs 353 kg, there is no light weight to match, so the most trips are required.

At this time, a car can carry up to 1500 353 = boxes) round up to 4 boxes, and a car can carry up to 353 * 4 boxes = 1412 kg.

A total of 19500 1412 = vehicles), that is, 13 vehicles cannot be transported, so 1 has to be added, so at least 14 vehicles are needed to ensure that they are transported at one time.

We can consider special circumstances, assuming that the weight of each box is 301 kg, then this kind of box has, that is, a little more than 64 boxes, the ton of car can only fit this kind of 4 boxes, and the fifth will be overweight, then 64 4 = 16, and finally the car can put the extra boxes on, so the correct answer should be 16 cars to ensure that all are transported, 14 cars are not good.

This means that a maximum of 4 boxes can be transported in one car.

That is, at least 53 boxes should be packed.

53 4 = That is, 13 cars cannot be loaded.

So at least 14 cars.

Divide by vehicles.

A: It takes 13 vehicles to complete the shipment.

At least 5 vehicles can be guaranteed to be transported at one time.

Let's assume the best-case scenario, which is 353 kg per box. Then you can transport four boxes at a time, a total of 56 boxes, then you need 14 cars.

For the first question, as long as you count a few more, you can get the law and get the answer. The second question, from small to large, is pushed out and the answer is derived. This is shown in the figure below. The answer to the first question is 6 and the answer to the second question is 87. Hope to adopt.

I will, but the process is too much, I'm sorry, I'm not free for the time being, if I can afford to wait for tomorrow and the day after tomorrow.

1 3600 (1 + 2 first 7) = 2800 (yuan) 2 (640 3 4) 4 5 = 600 (tree) 3 cauliflower 18 3 5 = 9 (pure celery to make cavity hectares) cabbage 18 5 9 = 10 (hectares).

Kimchi 18 4 9 = 8 (ha).

4 1 2x = 1 10x + 12 x = 30 (grains).

Except (1+2 7) Count yourself.

Do the math yourself. hectares 5+4=9 hectares.

4.There are a total of x grains of rice.

1 mu 10x+12)x2=x Calculate yourself.