A, B and C set out from a and B at the same time. A and B want to walk towards each other. A walks 80 meters per minute, B walks every minute The clock walks 70 meters, and C walks 60 meters per minute. A and B meet. Two minutes later, B and C meet. How many meters are there between a and B?

A, B and C set out from a and B at the same time. A and B want to walk towards each other. A walks 80 meters per minute, B walks every minute The clock walks 70 meters, and C walks 60 meters per minute. A and B meet. Two minutes later, B and C meet. How many meters are there between a and B?

Because the distance between the two places is certain, the distance a and B take when they meet C is the same
Then, suppose that both a and C walk for X minutes when they meet, then B and C walk for x + 2 minutes when they meet
It can be concluded that (80 + 60) * x = (70 + 60) * (x + 2)
140X=130X+260
X=26
The distance between the two places is 140 * 26 = 130 * 28 = 3640 meters

What is the meaning of T hour in mathematics

This is algebra knowledge, which means that time is an arbitrary value. For example, Xiao Ming walked t hours from home to school

What unit is the first t in mathematics?

Speed