180 days
15 carpenter, 45 houses, 90 days. Each carpenter restores 3 houses in 90 days. 5 carpenter restore 15 houses in 90 days. Therefore, 5 carpenters restore 30 houses in 180 days.
12 houses
20
After 1 day, you would have 2 pounds. After 2 days, you would have 4 pounds. After 3 days, you would have 8 pounds. After 4 days, you would have 16 pounds. After 5 days, you would have 32 pounds. After 6 days, you would have 64 pounds. After 7 days, you would have 128 pounds. After 8 days, you would have 256 pounds. After 9 days, you would have 512 pounds. After 10 days, you would have 1.024 pounds. After 11 days, you would have 2.048 pounds. After 12 days, you would have 4.096 pounds. After 13 days, you would have 8.192 pounds. After 14 days, you would have 16.384 pounds. After 15 days, you would have 32.768 pounds. After 16 days, you would have 65.536 pounds. After 17 days, you would have 131.072 pounds. After 18 days, you would have 262.144 pounds. After 19 days, you would have 524.288 pounds. After 20 days, you would have 1.048.576 pounds. So you would have 1 million pounds after 20 days. If you would get the money exponentially (not double it on a certain point on the day, but just continuing to grow all day), then it would take you log(2,1.000.000)=19,931568... days. So the answer is 19,931 or 20 days.
The answer is 60.
15 carpenter, 45 houses, 90 days. Each carpenter restores 3 houses in 90 days. 5 carpenter restore 15 houses in 90 days. Therefore, 5 carpenters restore 30 houses in 180 days.
* 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?
1 carpenter can restore 3 houses in 90 days, so he can restore 30 houses in 900 days. 5 carpenters therefore require 180 days. Alternatively, 15 restore 1 house in 2 days, so 5 restore 1 in 6 days and restore 30 in 6 x 30 ie 180 days.
rainy days wrong category
"Rainy Days and Mondays
Yes they did
The answer is 120. If 10 people can paint 60 houses in 120 days, that means 5 people can paint 60 houses in 240 days (inverse proportion). Therefore, if 5 people were to paint 30 houses it would take 120 days.
people who built stuff for people in the old days
These days, the monetary value of houses is increasing rapidly.
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.
24 houses
12 houses