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  • Question
  • Prabhas is twice as good a workman as Rana and finishes a piece of work in 3 hours. In how many hours they together could finish that piece of work?


  • Options
  • A. 3 hrs
  • B. 3.5 hrs
  • C. 2.5 hrs
  • D. 2 hrs

  • Correct Answer
  • 2 hrs 

    Explanation

    Given Prabhas is twice as good a workman as Rana.

    Prabhas finishes the work in 3 hrs

    => Rana finishes the work in 6 hrs.

    Number of hours required together they could finish the work

    = 3 x 6 / 3 + 6

    = 18/9

    = 2 hrs.

  • Tags: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO

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    • Options
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    • B. 4 : 3
    • C. 6 : 7
    • D. 9 : 16
    • Discuss
    • 2. A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

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