8^10=6^x
80=6x
13.33=x
You are completing the same task so each side of the equation. This is what is called a balanced equation. Whatever you do to one side you have to do to the other.
It is not a direct ratio of 8 is to 10 as 6 is to x. This will give you the wrong answer. You are comparing each side of the equation to the task at hand. The given is that you know that each side of the equation equals each other because it performs the same task.
Building 5 houses takes 12 x 75 ie 900 man-days. 20 men will thus take 900/20 ie 45 days.
Probably longer, unless Tommy Walsh is the gaffer...
It takes 100 man-days, so three men would take 33 and a third days and 8 men 12½ days. Working together the 3 men and 8 men would take 100/11 or 9 and a ninth days
They will take 4 days to complete the well.
1 7/8 days Matthew in one day can build 1/3 of the block. Andy in one day can build 1/5 of the block. Together in one day they can build 8/15 of the bolck. It means they need less than 1 day to build 7/15 of the block, which is 7/8 of the day. Thus, they need 1 day and 7/8 of the next day to build the block together.
35 days
It takes about 3 days for a robin to build its nest!!
It takes a long time...
it take 2 days
It took 273 days for them to build the pyramid
Building 5 houses takes 12 x 75 ie 900 man-days. 20 men will thus take 900/20 ie 45 days.
It takes 20000 day to build an oil rig.
It takes two days
it takes 32 years
About 3 days
Four days.
It can take years to design a car. How long it takes depends on several factors such as advancing technology and the designer.