You said that (a) men can dig (c) holes in (b) hours.
So . . . It takes (a) men (b / c) hours to dig one hole.
And . . . It takes One man (a b / c) hours to dig one hole.
Now . . . There are (b) holes to be dug.
It would take one man (a b / c)·(b) = (a b² / c) hours to dig them all.
But if you had 'x' men, it would only take them (c) hours to do it.
So c = (a b² / c) / x
x c = (a b² / c)
x = a b² / c² men .
Now, I lost the big overview while I was doing that, and just started following my nose through the fog. So I have to admit that I'm not that confident in the answer. But gosh durn it. That's the answer I got, and I'm stickin to it. Rrarrup !
2.15 + 2.5 = 2.65 2.65 + 3.85 = 6.40 If it is 0.5 6.40 + 0.5 = 0.9 If you meant 0.05 6.40 + 0.05 = 6.45 If you meant 5 (as in the whole number) 6.40 + 5 = 11.40
