Mma can see that 2.09 is closer to 2 than 2.36.
Answer:
6 men finish a piece of work in 8 days
1 men finish a piece of work in 8*6 days
4men will finish a piece of work in 48/4
days
..
which is equal to 12 days
You solve by useing the formula (b/2) ^2
And your answer is x= 3,1
