Question

Отправившись в морское путешествие экипаж яхты взял с собой 2400л пресной воды. Каждую неделю он тратил 15% того запаса воды которой у него был в начале недели. Сколько литров воды осталось через неделю путешествия? Через две недели?

Answer 1

2400:100*15=360(л)-1 неделя
2400-360=2040(л)- осталось через 1 неделю
2040-360=1680(л)- осталось через 2 недели

Answer 2

Calculation of Remaining Water after One Week

To calculate the amount of water remaining after one week of the journey, we need to determine the amount of water that is consumed each week.

Given that the crew initially took 2400 liters of fresh water, they consume 15% of their water supply each week.

To find the amount of water consumed in one week, we can calculate 15% of 2400 liters:

15% of 2400 liters = (15/100) * 2400 liters = 360 liters

Therefore, after one week, the crew would have consumed 360 liters of water.

To find the amount of water remaining after one week, we subtract the amount consumed from the initial supply:

2400 liters - 360 liters = 2040 liters

After one week of the journey, there would be 2040 liters of water remaining.

Calculation of Remaining Water after Two Weeks

To calculate the amount of water remaining after two weeks of the journey, we need to repeat the same calculation as above.

After one week, the crew had 2040 liters of water remaining.

Again, they consume 15% of their water supply each week.

To find the amount of water consumed in the second week, we can calculate 15% of 2040 liters:

15% of 2040 liters = (15/100) * 2040 liters = 306 liters

Therefore, after two weeks, the crew would have consumed an additional 306 liters of water.

To find the amount of water remaining after two weeks, we subtract the amount consumed from the previous week's remaining supply:

2040 liters - 306 liters = 1734 liters

After two weeks of the journey, there would be 1734 liters of water remaining.

Please note that these calculations assume a constant consumption rate of 15% each week and do not account for any other factors that may affect the water supply.