Question

Площадь поля 420га. В первый день засеяли 4/7 поля,во второй -60% остатка. Сколько гектаров осталось засеять?

Answer 1

240га засеяли в первый день. 60% от 3/7 = 108. Останется 180-108=72га
Ответ: 72га

Answer 2

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Answer 3

Calculating Remaining Area to be Sown

To calculate the remaining area to be sown, we can follow these steps:

1. Calculate the area sown on the first day: - The area sown on the first day is 4/7 of the total field area. - 4/7 of 420 hectares is (4/7) * 420 = 240 hectares.

2. Calculate the remaining area after the first day: - The remaining area after the first day is the total area minus the area sown on the first day. - Remaining area = Total area - Area sown on the first day - Remaining area = 420 hectares - 240 hectares = 180 hectares.

3. Calculate the area sown on the second day: - On the second day, 60% of the remaining area is sown. - 60% of 180 hectares is (60/100) * 180 = 108 hectares.

4. Calculate the area left to be sown: - The area left to be sown is the remaining area after the first day minus the area sown on the second day. - Area left to be sown = Remaining area after the first day - Area sown on the second day - Area left to be sown = 180 hectares - 108 hectares = 72 hectares.

Therefore, the remaining area left to be sown is 72 hectares.