📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store

    • Question

      A can finish a work in 12 days and B can finish the same

      work in 18 days. They work together for 4 days and then B leaves. In how many more days can A alone finish the remaining work?
      A 3⅓ days Correct Answer Incorrect Answer
      B 5⅓ days Correct Answer Incorrect Answer
      C 7⅓ days Correct Answer Incorrect Answer
      D 2⅓ days Correct Answer Incorrect Answer

      Solution

      ATQ, Take total work = LCM(12, 18) = 36 units. A’s rate = 36/12 = 3 units/day B’s rate = 36/18 = 2 units/day Together, in 1 day = 5 units. In 4 days, work done = 5 × 4 = 20 units. Remaining work = 36 − 20 = 16 units. A alone does 3 units/day. Days needed = 16/3 = 5⅓ days.

      Practice Next
      ask-question