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

      A gardener uses cylindrical roller of diameter 7 cm and

      length 28 cm to flatten a rectangular field of dimension 280cm × 165 cm. Find the number of revolutions made by the roller to flatten the entire field?
      A 225 Correct Answer Incorrect Answer
      B 125 Correct Answer Incorrect Answer
      C 75 Correct Answer Incorrect Answer
      D 150 Correct Answer Incorrect Answer
      E 95 Correct Answer Incorrect Answer

      Solution

      Let number of revolutions be n. => n × 2π (7/2) × 28 = 280 × 165 => n = 280 × 165 × 1/28 × 1/22 => n = 75

      Practice Next
      ask-question