A child was asked to add first few natural numbers (1+2+3+4…….) so long his patience permitted. As he stopped he gave the sum as 575. When the teacher declared the result wrong, the child discovered he had missed one number in the sequence during addition. The number he missed was


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All Questions › A child was asked to add first few natural numbers (1+2+3+4…….) so long his patience permitted. As he stopped he gave the sum as 575. When the teacher declared the result wrong, the child discovered he had missed one number in the sequence during addition. The number he missed was
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chetan shidling asked 6 years ago

Options:

  1. Less than 10
  2. 10
  3. 15
  4. more than 15