* 45/15 = 3 -> Each carpenter restores 3 houses in 90 days. * 5*3 = 15 -> 5 carpenters restore 15 houses in 90 days. * -> 5 carpenters restore 30 houses in 90*2 = 180 days. Wot, no electricians?
180 days
45 days
3 days
Building 5 houses takes 12 x 75 ie 900 man-days. 20 men will thus take 900/20 ie 45 days.
75 / 5 = 15 days for 12 men to build one house. 15x12 = 180 days for 1 man to build 1 house. 180 x 7 = 1260 days for 1 man to build 7 houses. 1260 / 20 = 61 days for 20 men to build 7 houses.
4-6 hours depending on what company and who does it
This was a previous incorrect answer*DIVIDE BY 2! everything is in half. half the people half the houses then it stands to reason HALF THE DAYS!!!!! the answer is 60*.....Actually the correct answer is 120 days. You must analyze the relationship of people per house (10 people build 60 houses=6 houses per person over time span). To prove this just imagine if the question asked how long 1 person would take to build 6 houses. You would not simply divide by 10 to get 12 days.
The sawhorse has long been used by carpenters.
Long Houses or Plank houses.
Long Houses.
Long Houses.
every tribe built their own long houses for their families