There are two kinds of chemical fertilizers in the warehouse, one is 120 tons, and the other is 90 tons. How many times can they be transported by two trucks with carrying capacity of 8 tons and 6 tons respectively? 120÷8+90÷6 （120+90）÷（8+6） =15+15 =210÷14 =30 (Times) = 15 (Times)

There are two kinds of chemical fertilizers in the warehouse, one is 120 tons, and the other is 90 tons. How many times can they be transported by two trucks with carrying capacity of 8 tons and 6 tons respectively? 120÷8+90÷6 （120+90）÷（8+6） =15+15 =210÷14 =30 (Times) = 15 (Times)

They're all right. The questions are not strict,

There are 60 tons of goods at the dock site. How many times does it take to transport them all by a car with a carrying capacity of 8 tons?

60 △ 8 = 7.5 ≈ 8 (Times)

There is an urgent need for a batch of materials in Guiyang city to be transported to the earthquake stricken areas in Sichuan Province. If n vehicles with a load of 5t are used for shipment, the remaining 21t materials are available. If n vehicles with a load of 8t are used for shipment, there are (n-1) vehicles full, and the last vehicle is not empty, but the materials are less than 5T, And the number of vehicles required is the least

8(n-1)

The motorcade transported a batch of goods and materials to the disaster area of Sichuan, driving 50 kilometers per hour when it went, 10.8 hours when it arrived at the disaster area, and how long did it take to drive 60 kilometers per hour when it came back
Be able to get to the starting point? 4:5 = 24 △ () = (): 15 = () 16 / 16 = ()%

Love, Wei Achen,
50 × 10.8 △ 60 = 9 (hours)
4: 5 = 24 (25) = (12): 15 = (16 / 20) = (80)%