45 days
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.
Multiply 3 and 5 to get a Least Common Multiple. 15. So you find how many rooms can Alvin paint in 15 hours (5 rooms). Same with Bernie (3 rooms). That means they can paint 8 rooms in 15 hours. Since you want to find "how long it would take," you flip the rate over. In 15 hours they can paint 8 rooms. Reduce if you want, 15/8= 1.875 hour to paint one room.
5 days
Time how long it takes to paint 10 sq ft. To paint 2000 sq ft would therefore take 200 times as long. With a roller on a prepared wall and a competent painter then 10 sq ft could be painted in less than 1 minute so 2000 sq ft would take 3 -4 hours.
6 days.
One day.
It would take 9 men 42 days.
According to Martha Stewart it takes at least thirty days
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.
Building 5 houses takes 12 x 75 ie 900 man-days. 20 men will thus take 900/20 ie 45 days.
this was difficult it got me a bit confused but it would take about 8 days
1 hour
it takes about 36 days to get to the moon
It would take them 4 hours to paint the house together.
180 days
it takes approximately 10 days
Watercolour has a short drying time. It only takes minutes for the paint to dry. The time it takes for the water to dry is how long it will take for the paint to dry.