Question

Тракторист за 1-ый день вспахал 14,7 га, что составило 7/11 вспаханного за 2-ой день и 7/15 вспаханного за 3-ий день. Сколько вспахал тракторист за три дня ?

Answer 1

14,7:7/11=23,1 га вспахал за второй день
14,7:7/15=31,5 га вспахал за третий день
14,7+23,1+31,5=69,3 га за три дня
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Answer 2

Calculation of the Area Plowed by the Tractorist

To calculate the total area plowed by the tractorist over three days, we need to determine the area plowed on each individual day and then sum them up.

According to the given information: - On the first day, the tractorist plowed 14.7 hectares. - On the second day, the plowed area was 7/11 of what was plowed on the first day. - On the third day, the plowed area was 7/15 of what was plowed on the first day.

Let's calculate the area plowed on each day:

1. First day: 14.7 hectares. 2. Second day: (7/11) * 14.7 hectares. 3. Third day: (7/15) * 14.7 hectares.

Now, let's calculate the total area plowed over the three days by summing up the areas plowed on each day:

Total area plowed = (14.7 hectares) + ((7/11) * 14.7 hectares) + ((7/15) * 14.7 hectares).

To simplify the calculation, we can convert the fractions to decimals:

Total area plowed = 14.7 hectares + (0.6363636363636364 * 14.7 hectares) + (0.4666666666666667 * 14.7 hectares).

Now, let's calculate the total area plowed:

Total area plowed = 14.7 hectares + 9.363636363636364 hectares + 6.866666666666667 hectares.

Total area plowed = 31.93 hectares.

Therefore, the tractorist plowed a total area of 31.93 hectares over the course of three days.