Buses and trucks travel from two places 852km apart and face each other at the same time. When they meet, the distance of buses is 189km less than twice that of trucks. How many kilometers do buses and trucks travel?

Buses and trucks travel from two places 852km apart and face each other at the same time. When they meet, the distance of buses is 189km less than twice that of trucks. How many kilometers do buses and trucks travel?


Suppose the freight car runs for X km, then the passenger car runs for 2x-189 km, x + 2x-189 = 852, & nbsp; & nbsp; & nbsp; & nbsp; 3x = 852 + 189, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3x = 1041, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 347; the passenger car runs for 2 × 347-189 = 505 (km); a: the passenger car runs for 505 km, and the freight car runs for 347 km



Passenger cars and freight cars travel from two places 852km apart and face each other at the same time. When they meet, the distance of passenger cars is twice that of freight cars. How many kilometers do passenger cars and freight cars travel? (solved by equation)


Suppose the freight car runs for X km, then the passenger car runs for 2x km, x + 2x = 852 & nbsp; 3x = 852 & nbsp; & nbsp; X = 284284 × 2 = 568 km. A: the passenger car runs for 568 km, and the freight car runs for 284 km



The distance between a and B is 424km. A freight car and a passenger car leave each other and meet each other after 4 hours
The passenger car is 14km faster than the freight car per hour. What is the speed of the two cars?
Solve by equation


424/4=106
(106-14)/2=46 46+14=60
Therefore, the passenger cars are 60 kilometers per hour, and the freight cars are 46 kilometers per hour