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Sticky Note
Subtracting 40% of a number from the number, we get the result as 30. The number is?
  1. 28
  2. 50
  3. 52
  4. 70
Explanation

Let the number be x.  

x - 0.4x = 30 → 0.6x = 30 → x = 30 ÷ 0.6 = 50  


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