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Question

Find the least number, that has to be added to 55078, so that the resulting number is a perfect square.


  1. 167

  2. 157

  3. 147

  4. 137


Solution

The correct option is C

147


Since we are getting a remainder, we must add a number to 55078 such the the resulting number is the the square of  235. (one more than the quotient)

 2352=55225

So, number which we need to add is 55225 - 55078

= 147

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