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

      β€˜A’ and β€˜B’ can do a piece of work in 16 days

      and 24 days, respectively. β€˜A’ started working alone and was replaced by β€˜B’ after 8 days. In how many days can β€˜B’ complete the remaining amount of work alone?
      A 8 days Correct Answer Incorrect Answer
      B 10 days Correct Answer Incorrect Answer
      C 6 days Correct Answer Incorrect Answer
      D 12 days Correct Answer Incorrect Answer

      Solution

      Let the total work be 48 units (LCM of 16 and 24) Efficiency of β€˜A’ = 48/16 = 3 units/day Efficiency of β€˜B’ = 48/24 = 2 units/day Let the number of days taken by β€˜B’ to finish the remaining amount of work be β€˜x’ ATQ, (3 Γ— 8) + 2x = 48 Or, 2x = 48 – 24 Or, 2x = 24 Or, x = 24/2 = 12 Therefore, time taken by β€˜B’ to complete the remaining work alone = 12 days

      Practice Next
      ask-question