Among the natural number 1to49 find the number for which the sum of all the preceeding number and the sum of all the succeeding number are equal
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Answer is 35
here's the process
x(x-1)/2=49(49+1)/2-[x(x+1)/2]
or,x=35
here's the process
x(x-1)/2=49(49+1)/2-[x(x+1)/2]
or,x=35
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