8th Class Mathematics Direct and Inverse Proportions Question Bank Direct and Inverse Proportions

  • question_answer
    6 workers complete a job in 8 days. How Br many workers are needed to complete the job 2 days in advance?

    A)  \[4\]                                    

    B)  \[8\]                    

    C)  \[10\]                                  

    D)         \[6\]                    

    Correct Answer: B

    Solution :

    The job needs to be completed 2 days in advance, i.e., in \[8-2=6\]days. The number of men and the number of days are inversely proportional. \[\therefore \]  \[6:x:\,\,:6:8\] \[\Rightarrow \]               \[x=\frac{6\times 8}{6}=8\] \[\therefore \] 8 workers are needed to complete the job in 6 days.


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