Question

За 3 ч работы один экскаватор вынул 555 куб. метр земли . Сколько кубических метров земли вынет второй экскаватор за 4 ч , если в час он вынимает на 15 куб. метров больше , чем первый

Answer 1

1)555/3=185 куб метр. в час 1 экскаватор
2)185+15=200 куб. метр в час 2 экскаватор
3)200*4=800куб. метр за 4 часа

Answer 2

1) 555:3=185 (м³) - один за 1 час
2) 185+15=200 (м³)-второй за один час
3) 200*4=800 (м³)-второй за 4 часа
Ответ: 800

Answer 3

Calculation of the Second Excavator's Output

To calculate the amount of earth the second excavator will remove in 4 hours, we need to determine its hourly output and then multiply it by the number of hours.

Given that the first excavator removed 555 cubic meters of earth in 3 hours, we can calculate its hourly output as follows:

555 cubic meters / 3 hours = 185 cubic meters per hour.

The second excavator removes 15 cubic meters more per hour than the first excavator. Therefore, its hourly output is:

185 cubic meters per hour + 15 cubic meters = 200 cubic meters per hour.

To find the total amount of earth the second excavator will remove in 4 hours, we multiply its hourly output by the number of hours:

200 cubic meters per hour * 4 hours = 800 cubic meters.

Therefore, the second excavator will remove 800 cubic meters of earth in 4 hours.