Passenger cars travel 70 kilometers per hour. Passenger cars are 1 / 6 faster than freight cars, thousands of meters faster?

Passenger cars travel 70 kilometers per hour. Passenger cars are 1 / 6 faster than freight cars, thousands of meters faster?

70 - 70÷（1+1/6) =10
It's 10 kilometers fast

It takes 10 hours for a bus and 15 hours for a freight car to go from a to B. now the two cars leave each other from two places. When they meet, the bus runs 240 kilometers. How many kilometers are there between a and B?

A: the distance between a and B is 400 km

A car is going from Shanghai to Nanjing at the speed of 80 kilometers per hour. If it starts at 7:30 a.m., it will arrive at 11:00 that day
① It's about () km from Shanghai to Nanjing
② If you draw this distance on a map with a scale of 1:2000000, you should draw () cm

1
I walked for 3.5 hours
About 80x3.5 = 280km
two
280km = 280000m = 28000000cm
Draw 28000000 △ 2000000 = 14cm
If you don't understand this question, you can ask,

An Iveco and a flying crane drive from Hai'an to Nanjing at the speed of 60km and 80km per hour respectively. Iveco starts one hour earlier than the flying crane, so that the two vehicles arrive at Nanjing at the same time. How many km is the distance between Hai'an and Nanjing?

60*1/(80-60)*80=60/20*80=240(km)