Question

В автобусе ехали пассажиры. Когда на остановке вышли 10 человек и вошли 3 человека, в нем стало 12 человек. Сколько пассажиров было в автобусе до остановки? Решить задачу в 2 действия примерами.

Answer 1

10-3=на 7 (п)- стало меньше в автобусе.

12+7=19 (п) - было до остановки.

Answer 2

12 - 3 + 10 =19 (Человек ) 

 12+10 - 3 =  19 (Человек ) 

Ответ : в автобусе было 19 человек до остановки 

 

Answer 3

Problem Analysis

We are given the following information: - Initially, there were some passengers in the bus. - 10 passengers got off at a stop. - 3 passengers got on the bus at the same stop. - After these changes, there were 12 passengers in the bus.

We need to determine the number of passengers in the bus before the stop.

Solution

Let's assume the number of passengers in the bus before the stop is x.

According to the given information: - 10 passengers got off the bus, so the number of passengers decreased by 10: x - 10. - 3 passengers got on the bus, so the number of passengers increased by 3: x - 10 + 3. - After these changes, there were 12 passengers in the bus: x - 10 + 3 = 12.

To find the value of x, we can solve the equation: x - 10 + 3 = 12.

Simplifying the equation: x - 7 = 12.

Adding 7 to both sides of the equation: x = 12 + 7.

Calculating the value of x: x = 19.

Therefore, there were 19 passengers in the bus before the stop.

Answer

There were 19 passengers in the bus before the stop.