Find the smallest positive integer that can be expressed as the sum of 9 consecutive positive integers, sum of 10 consecutive positive integers and sum of 11 consecutive positive integers.

1) 296
2) 324
3) 495
4) 675

• 495
  
  It will be multiple of 9 and 11 i.e . multiple of 99. as average of numbers will be an integer.
  
  only 495 satisfies this criteria.
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