It takes 8 hours and 45 minutes to get the distance between a and B

It takes 8 hours and 45 minutes to get the distance between a and B

8 hours 45 minutes = 8.75 hours, set the time to go is x hours, then the time to return is 8.75-x hours, according to the meaning of the title: & nbsp; & nbsp; 30x = (8.75-x) × 40 & nbsp; & nbsp; & nbsp; 30x = 350-40x3x + 40x = 350 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 70X = 350 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 530x = 30 × 5 = 150 (km) a: the distance between a and B is 150 km

When a car goes from place a to place B, it takes 25% of the whole journey in the first hour and 50 dry meters in the second hour. It takes 45% of the whole journey in two hours. How far is the distance between the two places?

45% in two hours and 25% in the first hour
That's 20% of the whole journey in the second hour
That is to say, 20% of the whole journey is 50 kilometers
The distance between the two places is x m, x = 50 / 20% = 250 km

A car from a to B, the first hour of travel 25%, the second hour of travel 50 kilometers, two hours a total of 45% of the journey?

A: the distance between a and B is 250 km

A car drove from a to B. it traveled one fifth of the whole journey in one hour, 80 kilometers in the second hour, and 25% more in the first hour than in the second hour

Distance = 80 × (1 + 25%) / 1 / 5 = 500 km

A car from a to B, the first hour of the whole line of 25%, the second hour of the whole line of 30%, two hours a total of 220 kilometers, a and B total length of how many kilometers?

A: the total length of a and B is 400 km