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Two cars set out from a certain place at the same time to transport a batch of goods to the construction site 160 kilometers away. Car a arrived 0.8 hours earlier than car B, Two cars set out from a certain place at the same time to transport a batch of goods to the construction site 160 km away. Car a arrived 48 minutes earlier than car B. when car a arrived at the destination, car B was 24 km away from the destination. How many hours did car a spend on the whole journey?
The speed ratio of a and B is 160: (160-24) = 20:17
For the whole process of a line: 48 △ 20-17) × 17 △ 60 = 4 and 8 / 15 hours
There are 96 tons of coal in the freight yard. Now there are three kinds of trucks with different carrying capacity. Which truck can be used to load them? Why? && nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; car 1 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; car 2 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; car 3 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2 tons & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3 tons & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 5 tons
The factors of 96 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96; when it needs to be carried by a 2-ton truck, it can be carried 48 times; when it needs to be carried by a 3-ton truck, it can be carried 32 times; because 5 is not the factor of 96, it can not be carried by a 5-ton truck; a: it can be loaded exactly by a 2-ton and 3-ton truck
The design load of highway bridge is highway grade 2. What is the maximum tonnage of truck that can pass through
Wait for bridge professionals to answer you
The correct answer is: you can often pass a large two axle truck with 7T front axle and 13T rear axle, or occasionally pass a 55T car with more than three axles
If you can, add some points, thank you
There are 840 tons of goods to be transported by two transport teams. Team a has 12 cars with a load of 5 tons, and team B has 15 cars with a load of 3 tons. According to the transport capacity of the two teams, how many tons of goods should each team carry?
(12 × 5): (15 × 3) = 4:3; team a: 840 × 44 + 3 = 480 (tons); Team B: 840 × 34 + 3 = 360 (tons); answer: team a should transport 480 tons, team B should transport 360 tons
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