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      Question

      A ball is thrown from a height of 900 m on the ground.

      It bounces (2/3)ย  times of its every last bounce. Find the total distance covered by the ball till that ball stops?
      A 1500 Correct Answer Incorrect Answer
      B 2500 Correct Answer Incorrect Answer
      C 4500 Correct Answer Incorrect Answer
      D 5100 Correct Answer Incorrect Answer

      Solution

      โ‡’ 900, 600, 600, 400, 400, ............ x (series not formed) Total distance covered โ‡’ (900 + 600), (600 + 400) โ‡’ 1500, 1000, ........ (proper series) 500 = a/(1-r) โ‡’ 1500/(1-2/3)ย  โ‡’ 4500

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