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      Question

      If the square root of 1024 is added to 30% of a number

      we get 4 less than 2/5th of the number. What is 3/8th of the number?
      A 144 Correct Answer Incorrect Answer
      B 108 Correct Answer Incorrect Answer
      C 135 Correct Answer Incorrect Answer
      D 120 Correct Answer Incorrect Answer

      Solution

      Let the number be N.

      According to the question,

      √1024 + 0.3N = 2N/5 - 4

      => 32 + 0.3N = 0.4N - 4

      => 0.1N = 36

      => N = 360

      3/8 x 360 = 135

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