Question

Выполняя зачетное задание, ученик решал сначала 25% всех задач затем 1/3 всех задач, а после этого 10 задач.Сколько вместе задач

Answer 1

Х -все задачи         0,25х  за 1й раз  решил        1/3х - за 2й раз                         х -0,25х - 1/3х = 10    5/12 х =10   х=10 / 5/12= 24      Всего задач 24          

Answer 2

Calculating the Total Number of Tasks

To calculate the total number of tasks, we can follow the steps provided in the question.

1. Step 1: The student solves 25% of all tasks. 2. Step 2: Then, the student solves 1/3 of all tasks. 3. Step 3: Finally, the student solves 10 tasks.

Let's calculate the total number of tasks based on these steps.

Step 1: Solving 25% of All Tasks

The student solves 25% of all tasks.

Step 2: Solving 1/3 of All Tasks

Next, the student solves 1/3 of all tasks.

Step 3: Solving 10 Tasks

Finally, the student solves 10 tasks.

Calculating the Total Number of Tasks

To find the total number of tasks, we can add the tasks solved in each step.

1. Step 1: 25% of all tasks 2. Step 2: 1/3 of all tasks 3. Step 3: 10 tasks

Let's calculate the total number of tasks based on the given information.

25% of all tasks + 1/3 of all tasks + 10 tasks = Total number of tasks

25% can be represented as 1/4, and 1/3 can be represented as approximately 0.3333.

So, the total number of tasks can be calculated as follows:

Total number of tasks = (1/4) * x + (1/3) * x + 10

Where x is the total number of tasks.

Let's solve for x.

(1/4)x + (1/3)x + 10 = x

Multiplying through by 12 to clear the fractions:

3x + 4x + 120 = 12x

7x + 120 = 12x

120 = 12x - 7x

120 = 5x

x = 120 / 5

x = 24

So, the total number of tasks is 24.

Conclusion

The total number of tasks is 24.