πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!

  • google app store apple app store
  • βœ–

      Question

      X and Y can complete a task together in 24 days, while Y

      alone takes 48 days to finish it. X worked alone for some days and then Y completed the rest of the work in 36 days. What percentage of the total work was completed by X?
      A 15% Correct Answer Incorrect Answer
      B 10% Correct Answer Incorrect Answer
      C 25% Correct Answer Incorrect Answer
      D 35% Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let total work = 48 units

      Efficiency of (X + Y) = 48 / 24 = 2 units/day

      Efficiency of Y = 48 / 48 = 1 unit/day

      Work done by Y = 36 Γ— 1 = 36 units

      Work done by X = 48 – 36 = 12 units

      Percentage of work done by X = (12 / 48) Γ— 100 = 25%

      Practice Next

      Relevant for Exams:

      ask-question