Question

1плотник может построить дом за 1 год 2-ой за 2года 3-ий за 3года 4-ый за 4 года За солько лет посторят дом все вместе?

Answer 1

1 плотник-за 1 год
2 плотник - за 2 года
3 плотник - за 3 года
4 плотник за 4 года
Вместе -1 +1/2+1/3+1/4=12/12+6/12+4/12+3/12=25/12( это производительность при совместной работе)
1 делим на 25/12 = 12/25 =0,48( Это время, за которое 4 плотника построят дом)
Ответ: 0,48 года

Answer 2

Calculation of the Time Required to Build the House

To determine the total time required to build the house when each carpenter takes a different amount of time, we need to add up the individual times for each carpenter.

According to the information provided, the first carpenter can build a house in 1 year, the second carpenter in 2 years, the third carpenter in 3 years, and the fourth carpenter in 4 years.

To calculate the total time required, we add up the individual times for each carpenter:

1 year + 2 years + 3 years + 4 years = 10 years

Therefore, it will take 10 years for all the carpenters to build the house together.

Conclusion

In summary, if the first carpenter can build a house in 1 year, the second carpenter in 2 years, the third carpenter in 3 years, and the fourth carpenter in 4 years, it will take a total of 10 years for all the carpenters to build the house together.