Question 46
If 6 people working 8 hours a day can finish a work in 12 days, how many days will it take for 4 people working 8 hours a day to finish the same work?
Solution
Using $$M_1D_1H_1$$ $$=M_2D_2H_2$$
Let time taken be $$D_2$$
=> $$6\times8\times12=4\times8\times D_2$$
=> $$D_2=6\times3=18$$ days
=> Ans - (D)
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