Posted by **Will** on Tuesday, June 2, 2009 at 11:22pm.

If it takes 4 people 20 days to build a house, how long does it take 6 people. I know the answer is 15 days, but for the life of me I can't figure out the formula for it.

## Answer This Question

## Related Questions

- algebra - Here's the problem: It takes Stan 20 days to build a house by himself...
- Math - The earth takes 365 1/4 days to go around the sun. Mercury takes 3 days ...
- Math - A supply of food lasts 12 people 5 days. A) how long will it last for 1 ...
- Math - It takes 5 people 3 days to put up a fence? How many days would 3 people ...
- math - it takes 7 men 10 days to build a garage.Halfway through building the ...
- Math - Hers is another one: 3 people requires 3 weeks and 2 days to do a job. ...
- Math - If it takes 10 people 6 days to do a home improvement, how long would 4 ...
- Algebra - six people can paint a house in 3 days, how long it would take two ...
- Algebra - 1) Mio can build a large shed in 15 days less than Yuuko can. If they ...
- Algebra - six people can paint a house in 3 days, how long it would take two ...

More Related Questions