Answered

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If 20 assemblers can complete a certain job in 6 hours, how long will the same job take if the number of assemblers is cut back to 8?

Sagot :

ANSWER

[tex]15[/tex]

EXPLANATION

For 1 assembler, it will take;

[tex]\begin{gathered} 20\times R\times6=1 \\ R=\frac{1}{120} \end{gathered}[/tex]

For 8 assemblers;

[tex]8\times R\times T=1[/tex]

Substitute R

[tex]\begin{gathered} 8\times R\times T=1 \\ 8\times\frac{1}{120}\times T=1 \\ \frac{8T}{120}=1 \\ 8T=120 \\ T=\frac{120}{8} \\ =15 \end{gathered}[/tex]

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