Question

За день бригада вспахала 40 га, что составило 2/5 площади всего поля. Какова площадь поля?

Answer 1

40:2/5=40*5/2=100га вспахала бригада

Answer 2

Calculation of Field Area

To calculate the total area of the field, we can use the information provided. The brigade plowed 40 hectares, which is equivalent to 2/5 of the total field area.

Let's denote the total field area as A. According to the given information, 2/5 of the field area is equal to 40 hectares. We can set up the following equation:

(2/5)A = 40

To find the value of A, we can solve this equation for A.

Solving the Equation

To solve the equation, we can multiply both sides by the reciprocal of 2/5, which is 5/2:

(2/5)A * (5/2) = 40 * (5/2)

Simplifying the equation:

A = 40 * (5/2)

Calculating the right side of the equation:

A = 200/2

Simplifying further:

A = 100

Therefore, the total area of the field is 100 hectares.

Conclusion

The total area of the field is 100 hectares.