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Ncrt math 5.4 ka question no. …

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Ncrt math 5.4 ka question no. 4
  • 1 answers

Gaurav Seth 5 years, 2 months ago

4. The houses of a row are numbered consecutively from 1 to 49. Show that there is a value of  such that the sum of the numbers of the houses preceding the house numbered  is equal to the sum of the numbers of the houses following it. Find this value of 

Ans. Here  and 

 = 

 = 

 = 49 x 25

According to question,

 = 

  + 

 

  = 

 

Since,  is a counting number, so negative value will be neglected.

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