ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!
  • google app store apple app store
    • тЬЦ

      Question

      A is thrice as good a workman as B and therefore is able

      to finish a job in 60 days less than B. Working together, they can do it in:
      A 12.5 days Correct Answer Incorrect Answer
      B 22.5 days Correct Answer Incorrect Answer
      C 18.2 days Correct Answer Incorrect Answer
      D 28 days Correct Answer Incorrect Answer

      Solution

      Efficiency Ratio A : B = 3 : 1 Time Ratio A : B = 1 : 3 Difference in time units = 3 - 1 = 2 units. Given difference = 60 days. So, 2 units = 60 => 1 unit = 30 days. A takes 30 days (1 unit). B takes 90 days (3 units). Together = (A ├Ч B) / (A + B) = (30 ├Ч 90) / (30 + 90) = 2700 / 120 = 22.5 days.

      Practice Next
      More Time and work Questions

      Relevant for Exams:

      ask-question