Question

it takes 3 men working 8 hours a day for 5 days to fence a piece of land. how long would it take for 10 men working 6 hours a day to fence the same land

Answer 1

it takes 3 men and 8 hours

Answer 2

the total time needed is

3×8×5 = 120 hours

10×6= 60

120-60= 60

so they need to work for 2 days