56 men can do a job in 14 days. How many additional men are required to do the same job in 8 days?
Let the extra men required be M
using the formula
$$\frac{M1D1}{W1}$$ = $$\frac{M2D2}{W2}$$
$$\frac{56 \times14 }{W}$$ = $$\frac{8(M+14)}{W}$$
M +56 = 98
M = 42 men
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