Question

Занятия в школе длятся 5ч.30мин. Перемены занимают 3/11 этого времени. Сколько часов длятся уроки? Помогите решить задачу.

Answer 1

1 ч = 60 мин
5ч 30 мин = 5*60 + 30 = 330 мин
330*3/11 = 330 * 3 : 11 = 90 мин длятся перемены

Answer 2

Calculation of Lesson Duration

To determine the duration of the lessons, we need to subtract the time spent on breaks from the total school hours.

Given: - Total school hours: 5 hours 30 minutes - Break time: 3/11 of the total time

Let's calculate the duration of the lessons step by step:

1. Convert the total school hours to minutes: - 5 hours * 60 minutes/hour = 300 minutes - 300 minutes + 30 minutes = 330 minutes

2. Calculate the break time: - 3/11 * 330 minutes = 90 minutes

3. Subtract the break time from the total school hours: - 330 minutes - 90 minutes = 240 minutes

4. Convert the remaining minutes back to hours and minutes: - 240 minutes ÷ 60 minutes/hour = 4 hours - 240 minutes % 60 minutes = 0 minutes

Therefore, the duration of the lessons is 4 hours.