Question

Задача: Відстань між двома містами 250км.Із цих міст назустріч один одному одночасно виїхали два автобуси. Яка відстань була між автобусами,коли перший з них проїхав 127км,а другий 93км? 1)127+93=220(км) 2)250-220=30(км) Но учительница сказала что это неправильное решение как можно еще решить эту задачу?

Answer 1

Может в одну строчку нужно решать?
250-(127 + 93 )= 30 км
 По другому больше никак!

Answer 2

To find the distance between two buses when one has traveled 127 km and the other has traveled 93 km, we can use the concept of relative distance. The distance between the two cities is 250 km.

Method 1: Using Relative Distance

We can calculate the distance between the two buses by subtracting the distance traveled by the first bus from the total distance between the cities.

Step 1: Calculate the distance between the two buses by subtracting the distance traveled by the first bus from the total distance between the cities. Distance between the two buses = Total distance - Distance traveled by the first bus

Step 2: Substitute the given values into the formula. Distance between the two buses = 250 km - 127 km

Step 3: Calculate the result. Distance between the two buses = 123 km

Therefore, the distance between the two buses when the first bus has traveled 127 km and the second bus has traveled 93 km is 123 km.

Method 2: Using the Difference in Distance

Another way to solve this problem is by finding the difference in distance traveled by the two buses.

Step 1: Calculate the difference in distance traveled by the two buses. Difference in distance = Distance traveled by the first bus - Distance traveled by the second bus

Step 2: Substitute the given values into the formula. Difference in distance = 127 km - 93 km

Step 3: Calculate the result. Difference in distance = 34 km

Therefore, the distance between the two buses when the first bus has traveled 127 km and the second bus has traveled 93 km is 34 km.

Both methods yield the same result, so either one can be used to solve the problem. It's important to note that the teacher may have considered the first method incorrect if they were looking for the distance between the two buses at a specific point in time, rather than the difference in distance traveled.