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SSC Sample Paper SSC CGL - Sample Paper-6

  • question_answer
    Diameter of a wheel is, 3 m. The wheel revolves 28 times in a minute. To cover 5.280 cm distance, the wheel will take \[\left( take\pi =\frac{22}{7} \right)\]

    A)  10 min            

    B)  20 min

    C)  30 min            

    D)  40 min

    Correct Answer: B

    Solution :

    \[\because \] Diameter of wheel \[=3\,m\] \[\therefore \] Circumference \[=\pi \,d\]                         \[=\frac{22}{7}\times 3=\frac{66}{7}\,cm\] \[\therefore \] Number of revolutions \[=\frac{5280}{66}\times 7=560\] \[\because \] 28 revolutions took in 1 min \[\therefore \]      Time taken \[=\frac{560}{28}\]      \[=20\,\text{min}\]


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