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      Question

      Find the smallest number that should be multiplied to

      1575 so that it becomes a perfect square.
      A 3 Correct Answer Incorrect Answer
      B 5 Correct Answer Incorrect Answer
      C 7 Correct Answer Incorrect Answer
      D 15 Correct Answer Incorrect Answer

      Solution

      1575  =  3 2  ×  5 2  ×  7

      Since, only the power of 7 is odd, we need to multiply the given number by 7 once to make it a perfect square.

      Required number = 7

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