📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • âś–

      Question

      Priya, Riya, and Supriya can complete a piece of work

      individually in (20/3) days, 20 days, and 25 days, respectively. If they work together, how many days will it take for them to complete 84% of the work?  
      A 4 days Correct Answer Incorrect Answer
      B 5 days Correct Answer Incorrect Answer
      C 4.5 days Correct Answer Incorrect Answer
      D 3.5 days Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let total amount of work = 100 units (LCM of 20/3, 20 and 25) Efficiency of Priya = 100/(20/3) = 15 units per day Efficiency of Riya = 100/20 = 5 units per day Efficiency of Supriya = 100/25 = 4 units per day Amounts of work to be completed = 0.84 Ă— 100 = 84 units Desired time = 84/(15 + 5 + 4) = 3.5 days

      Practice Next
      More Time and work Questions

      Relevant for Exams:

      ask-question