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      Question

      36 painters can paint a building in 45 days. If 18

      painters started the work and after 30 days β€˜v’ more painters joined them such that the remaining work got completed in 15 days, then find the value of β€˜v’.
      A 50 Correct Answer Incorrect Answer
      B 52 Correct Answer Incorrect Answer
      C 54 Correct Answer Incorrect Answer
      D 56 Correct Answer Incorrect Answer
      E 58 Correct Answer Incorrect Answer

      Solution

      Total work = 36 Γ— 45 = 1620 units Work completed by 18 painters in 30 days = 18 Γ— 30 = 540 units Remaining work = 1620 – 540 = 1080 units Let the number of painters added be β€˜v’. Therefore, (18 + v) Γ— 15 = 1080 270 + 15v = 1080 15v = 810 v = 54 Number of painters added = 54

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