The car runs 100 kilometers per hour and the bus 80 kilometers per hour

The car runs 100 kilometers per hour and the bus 80 kilometers per hour

=（80+100）*2、
=180*2、
=360 km

The highway between the two places is 140 km long. A and B buses start from the two places at the same time and travel in opposite directions. Car a travels 80 km per hour, and it hasn't met car B 0.8 hours later. At this time, the distance between the two cars is 16 km. How many kilometers does car B travel per hour?

(140-80 × 0.6-16) △ 0.8, = (140-48-16) △ 0.8, = 76 △ 0.8, = 95 (km / h). A: car B travels 95 km per hour on average

The bus and the car travel along the same road in the same direction. The bus travels 60 kilometers per hour. After 1.5 hours, the car leaves. The car travels 80 kilometers per hour,
Catch up with the bus on the way in a few hours?

(60x1.5) △ 80-60) = 90 △ 20 = 4.5 hours
A: 4.5 hours to catch up

A and B start from a and B at the same time and travel in opposite directions. A travels 80 kilometers per hour, and B travels 10% of the whole journey per hour. When B reaches 58, a reaches B at 16 of the whole journey. How many kilometers are there between a and B?

The speed ratio of a and B is: (1-16): 58 = 56:58 = 4:3; therefore, the speed of B car per hour is: 80 △ 4 × 3 = 20 × 3 = 60 (km); the distance between AB and a: 60 △ 10% = 60 △ 0.1 = 600 (km); a: the distance between a and B is 600 km