SOLUTION: If it takes 12 carpenters 30 days to build a house, how many more will have to be added to finish a house in 24 days?
Algebra.Com
Question 740638: If it takes 12 carpenters 30 days to build a house, how many more will have to be added to finish a house in 24 days?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
12 carpenters take 30 days to build a house
To build the house in 1/5 that time would take
5 times as many carpenters, so
---------------------------
60 carpenters take 6 days to build a house
If they have 4 times as long to build the house,
they can do it with 1/4 as many carpenters, so
---------------------------------------
15 carpenters take 24 days to build a house
They started with 12 carpenters, so
they have to add 3 more to finish it in 24 days
RELATED QUESTIONS
8 man can build a house in 18 days how many men will it take to finish it within 12... (answered by Edwin McCravy)
8 men can build a house in 18 days how many men will it take to finish it within 12 days
(answered by richwmiller)
Carpenter Andersen owns a lumber company and to build a house. The whole house can be... (answered by stanbon)
Fifteen carpenters can complete building a house in 45 days . How many extra men will be... (answered by ankor@dixie-net.com)
If it takes 3 days for 10 workers to finish a house, how many days will it take 15... (answered by ankor@dixie-net.com)
if it takes six men to paint a house in 21 days, how many men will be needed to paint the (answered by josgarithmetic)
If it takes 5 men 6 days to build a house, how many days will it take if only 3 men are... (answered by ewatrrr)
It takes 12 workers 30 days to build a house. How long would it take 18 similar workers? (answered by ramkikk66)
It takes 6 people to build a house in 8 days, how many people does it take to build a... (answered by ewatrrr)