1. If 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days?
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
Using, $$M_1D_1H_1$$ = $$M_2D_2H_2$$ => $$20 imes 21 imes 8 = 48 imes 7 imes h$$ => $$h=20 imes frac{21}{7} imes frac{8}{48}$$ => $$h=20 imes frac{3}{6}=10$$ days => Ans - (C)