Question

Маляр за 6 ч работы может покрасить 24м2 стены,а его ученик - 18м2.Какую площадь они смогут покрасить за 8 ч, работая вместе?

Answer 1

24:6=4 м2 за час маляр
4*8=32 м2 за 8 часов маляр
18:6=3 м2 за час ученик
3*8= 24 м2 за 8 часов ученик
32+24= 56 м2 вместе за 8 часов

Answer 2

Можно проще:
1) 24+18=42 (м2) - покрасят вместе за 6 ч.
2) 42/6=7 (м2) - покрасят вместе за 1 ч.
3)7*8=56 (м2) - покрасят вместе за 8 ч.

Answer 3

Calculation of Painting Area

To calculate the total painting area that the painter and his apprentice can cover in 8 hours, we need to determine their combined painting rate per hour.

According to the information provided, the painter can cover 24 square meters of wall in 6 hours, while the apprentice can cover 18 square meters in the same time frame.

To find their combined painting rate, we can calculate the rate per hour for each of them:

- Painter's rate per hour: 24 square meters / 6 hours = 4 square meters per hour. - Apprentice's rate per hour: 18 square meters / 6 hours = 3 square meters per hour.

Calculation of Total Painting Area in 8 Hours

Now that we know their individual painting rates per hour, we can calculate the total painting area they can cover in 8 hours by adding their rates together.

- Combined rate per hour: Painter's rate + Apprentice's rate = 4 square meters per hour + 3 square meters per hour = 7 square meters per hour.

To find the total painting area they can cover in 8 hours, we multiply their combined rate per hour by the number of hours they work together:

- Total painting area in 8 hours: Combined rate per hour * 8 hours = 7 square meters per hour * 8 hours = 56 square meters.

Therefore, working together for 8 hours, the painter and his apprentice can paint a total area of 56 square meters.

Please note that the calculation assumes a consistent painting rate throughout the entire duration of work.