If m men working m h per day, can do m units of work in m days, then n men working n h per day would be able to complete how units of work in days?
Correct Answer: n3/m2
Explanation:
Let the required number of units of work = k
According to the formula,
W1= m and W2 = k
M1T1D1W2 = M2T2D2W1
⇒ m x m x m x k = n x n x n x m
∴ x= (m x n3) / m3 = n3/m2
