two consecutive terms are removed from 1,2,3...n The mean of remaining no s is equal to 26 1/4. Value of n is:
a 50 b 60 c 81 d none of these

• let take n=50
  1,2,3,4....50
  sum: n(n+1)/2
  
  50x51/2=1275
  
  as two numbers are removed
  
  (1275-(x+x+1))/48= 105/4
  x=7
  Hence, 7 and 8 are removed.
  and n =50
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• a) 50 .......
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• can u explain the answer
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