Question

взрослый билет для проезда в поезде стоит 180руб Сколько стоит детский билет если на билеты для 2взрослых и4 детей потратили 840руб

Answer 1

180*2=360руб - стоят 2 билета для взрослых
840-360=480руб - стоят детские билеты
480/4=120руб - стоит детский билет 

Answer 2

Calculation of Child Ticket Price

To calculate the price of a child ticket, we can use the given information that the adult ticket costs 180 rubles and a total of 840 rubles was spent on tickets for 2 adults and 4 children.

Let's denote the price of a child ticket as x.

The total cost of tickets can be expressed as an equation: 2 * 180 (adult tickets) + 4 * x (child tickets) = 840

Solving for x: 360 + 4x = 840 4x = 840 - 360 4x = 480 x = 480 / 4 x = 120

The price of a child ticket is 120 rubles.

Summary

Based on the given information, the price of a child ticket for the train ride is 120 rubles.