The houses in a row are numbered consecutively from 1 to 49. Show that there exists a value of X such that sum of houses preceding the house numbered X is equal to sum of the numbers of houses following X.

Asked by सुधाकर | 24th Mar, 2017, 08:29: PM

Expert Answer:

Hi, 
 
 
I have also attached a link where you could get last years solutions, just in case you would like to go through the solutions.
 
http://www.topperlearning.com/study/cbse/class-10/mathematics/previous-year-question-papers/53478/pdf/b101c2s3e8

Answered by Rebecca Fernandes | 24th Mar, 2017, 10:13: PM