Question

Срочно ребят в первый день в танкер закачали 10т нефти что составило 20% от всего объема нефти 2 день закачали 10% от оставшегося а в 3 день 50% от оставшегося после закачали в 1 и в 2 день сколько закачали в 4 день и сколько было всего нефти

Answer 1

1) 20% = 0,2
   10 : 0,2 = 50 (т) нефти - это весь объём нефти
2) 50 - 10 = 40(т) осталось закачать после 1-ого дня
3) 10% = 0,1
     40 * 0,1 = 4 (т) нефти закачали во 2-ой день
4) 40 - 4 = 36 (т) нефти осталось закачать после 2-ого дня
5) 50% = 0,5
   36 * 0,5 = 18(т) нефти закачали в 3-ий день
6) 10 + 4 + 18 = 32 (т) всего закачали за 3 дня
7) 50 - 32 = 18(т)
Ответ: 50т нефти было всего; 18т нефти закачали в 4 -ый день.

Answer 2

1) 10 : 0,2 = 50 ( т ) весь объём нефти
2) 0,1•( 50 - 10 ) = 4 ( т ) во 2-ой день
3) 0,5•( 50 - 10 - 4 ) = 18 ( т ) в 3-ий день
4) 10 + 4 = 14 ( т ) в 4-вый день
Ответ 14 т ; 50 т

Answer 3

Calculation of Oil Volume

To calculate the amount of oil that was pumped into the tanker on each day, we can follow these steps:

1. On the first day, 10 tons of oil were pumped, which constituted 20% of the total oil volume. 2. On the second day, 10% of the remaining oil was pumped. 3. On the third day, 50% of the oil remaining after the first two days was pumped.

Let's calculate the amount of oil pumped on each day and the total volume of oil.

Step 1: Calculate the total volume of oil

To find the total volume of oil, we need to determine the initial volume of oil before any pumping occurred. We know that the amount pumped on the first day constituted 20% of the total volume.

Let's assume the total volume of oil is represented by "x".

According to the given information, 10 tons of oil were pumped on the first day, which constituted 20% of the total volume:

10 = 0.2x

Solving this equation, we find:

x = 10 / 0.2 = 50 tons

So, the initial volume of oil was 50 tons.

Step 2: Calculate the amount of oil pumped on the second day

On the second day, 10% of the remaining oil was pumped. To calculate this, we need to find the remaining oil after the first day.

The amount of oil remaining after the first day is:

50 - 10 = 40 tons

10% of 40 tons is:

0.1 * 40 = 4 tons

Therefore, 4 tons of oil were pumped on the second day.

Step 3: Calculate the amount of oil pumped on the third day

On the third day, 50% of the oil remaining after the first two days was pumped. To calculate this, we need to find the remaining oil after the second day.

The amount of oil remaining after the second day is:

40 - 4 = 36 tons

50% of 36 tons is:

0.5 * 36 = 18 tons

Therefore, 18 tons of oil were pumped on the third day.

Step 4: Calculate the amount of oil pumped on the fourth day

To find the amount of oil pumped on the fourth day, we need to subtract the total amount of oil pumped in the first three days from the initial volume of oil.

Total amount of oil pumped in the first three days:

10 + 4 + 18 = 32 tons

Initial volume of oil:

50 tons

Amount of oil pumped on the fourth day:

50 - 32 = 18 tons

Therefore, 18 tons of oil were pumped on the fourth day.

Summary:

- On the first day, 10 tons of oil were pumped. - On the second day, 4 tons of oil were pumped. - On the third day, 18 tons of oil were pumped. - On the fourth day, 18 tons of oil were pumped.

The total volume of oil was 50 tons.

Please note that the calculations above are based on the given information and assumptions made during the calculation process.