Answer:
6 Days
Step-by-step explanation:
Practically:
It takes,
10 Men ( complete ) 5 Copies --> 6 Days
So, 2 Men can complete 1 copy in 6 days.
Question asks us :
8 Men ( complete ) 4 Copies --> X Days
It will take 6 days because the proportion of men to copies is same as the first equation.
Theoretically:
10 Men 5 Copies 6 Days
8 Men 4 Copies X Days
> 6/X = 8/10 ( If men decrease the number of days increase. So, it is an indirect proportion. ) . 5/4 ( If copies decrease the number of days decrease as well. So, it is a direct proportion. )
> 6/X = 8/10 . 5/4
> 6/X = 40/40
> 6/X = 1
Answer:
The number of days required for 8 men working to complete 4 copies of the books is 6 days
Step-by-step explanation:
Given As
The number of men (M1) = 10
The number of working days (D1) = 6 days
The work done (W1) = 5 copies
Again,
The number of men (M2) = 8
The number of working days (D2) = D2 days
The work done (W2) = 4 copies
∵ [tex]\frac{Men\times Day}{Work}[/tex] = constant
So , [tex]\frac{M1\times D1}{W1} = \frac{M2\times D2}{W2}[/tex]
or, [tex]\frac{10\times 6}{5} = \frac{8\times D2}{4}[/tex]
Or, [tex]\frac{60}{5}[/tex] = [tex]\frac{8\times D2}{4}[/tex]
Or, D2 = [tex]\frac{12\times 4}{8}[/tex]
∴ D2 = 6 days
Hence The number of days required for 8 men working to complete 4 copies of the books is 6 days Answer
